Once a wi-fi network has been joined in Mac OS, the Mac will default to joining that network if it’s within range and available again. This is undeniably convenient for joining our home, work, and regular wireless networks, but it can be a nuisance when the Mac rejoins a network that you no longer want to connect to. While setting the wi-fi network priority is one option, another option is to have the Mac “forget” the network, preventing it from automatically rejoining again. This is particularly helpful if you live or work within an area that has open networks available that you do not accidentally want to join.

Forgetting a wi-fi network in Mac OS X is very easy, though the option is a bit more hidden than some users may expect. Fortunately, like the iOS counterpart, learn to drop a wireless network once on the Mac and you won’t have to wonder how to do it again in the future.
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This weeks featured Mac setup is the desk of Stephen G., a web programmer with a genuinely awesome quad display configuration. If you’re wondering how this great setup gets used, or if you’re just curious how on earth to drive three additional screens off of a MacBook Pro in a similarly sweet four-panel layout like this, read on to learn much more…

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The Macs default boot login screen is fairly boring by default, and though it can be spruced up with custom wallpaper, another option is to set a screen saver to run at the login window of OS X. This requires using a defaults command string entered at the command line, which then makes the screen saver visible at the boot login window of OS X, as well as the general login screen if all users have logged out of the Mac.
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Most smartphone owners are pretty set on their preference towards the iPhone or Android, but that doesn’t mean you can’t cross-pollinate a bit… at least with your device wallpaper. With the general bright-color trend, many of the Android wallpapers look absolutely fantastic on the iPhone and iPad too, and some of the KitKat wallpapers are even large enough to work on the desktop.

We’ll focus on my three personal favorites here; the infamously bright pink mountains from KitKat, and the multicolor craziness from the new S5. You can also opt to grab the full pack of 12 wallpapers too, which include seven from Android 4.4 Kitkat, and three wallpapers from the newly released Samsung Galaxy S5.

Click any of the thumbnails below to open the full sized wallpaper:
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Ever launched the Mail app on your iPhone or iPad to discover an “Unsent Message” indicator at the bottom of the screen? An email usually goes unsent if you lose internet access while trying to send the message, a fairly common occurrence for those who live in areas with poor cellular reception or that have flaky internet access in general. While iOS will usually successfully send the message on it’s own once a signal has been found again, it doesn’t always work, which is why you may need to trigger a resend yourself to move it along as intended.
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Most command line users rely heavily on Terminal keyboard navigation to move about within text files and get around within the Terminal, but Mac OS X has a super simple trick up its sleeve that lets you instantly position the mouse cursor anywhere in the Terminal.

This means no more tabbing around or repeatedly tapping on the arrow keys, you can just point and click to focus the cursor in the Terminal, just like it was the GUI, and it works the same whether the cursor destination is at the beginning/end of a line or smack dab in the center of a text block.
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Playing YouTube videos and audio in the background of iOS is an easy way to listen to a song or show that you want to stream to your iPhone, but the ability to play that stream in the background has changed a bit with the newest versions of iOS. As many recall, users on the iPhone and iPad with prior versions of iOS used to be able to start playing a video or music from YouTube and then just switch out of the app to keep the audio playing in the background of iOS, but it’s not quite the same anymore. While you can continue to listen to YouTube video and audio streams in the background, you’ll have to rely on a slightly different method.
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Mac OS includes many smaller details that can make digital life much easier, but because they’re fairly minor features, they can often go overlooked by Mac users. An excellent example of such a feature are the transfer progress indicators that are native throughout Mac OS, these make it extremely easy to keep an eye on the progress of files you’re downloading from anywhere, whether it’s from a website, SFTP, AirDrop, or even file transfers between Macs on the same network. The two most useful places to find these are right in the Dock and the Finder of Mac OS X.
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With so many holidays scattered throughout the year, it’s easy to lose track of when is what, and on which day the next falls. Fortunately, the Mac Calendar app makes it simple to toggle the display of all holidays directly in the Calendar app, so you’ll never lose track over what date Palm Sunday, Earth Day, Thanksgiving, or Cinco De Mayo (ok that one’s easy) is, whether it’s this year or the next.
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All iOS users know the familiar “ding” alert sound of a new email landing in the inbox of your iPhone or iPad. For those of us who live attached to technology, these alert sounds have basically trained our brain to stop what we’re doing and check our inbox, often relying only on the mute button or Do Not Disturb function to get a break.
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If you’re a regular reader here, you already know that Siri can be used for directions, and you know there’s plenty of funny commands to ask, but this one is an unexpected combination of both… Grab your iPhone (or iPad) and ask Siri to find you a 7-Eleven (yes the global 24 hour convenience store), you’ll get a rather unexpectedly hilarious response. For whatever reason, whether it’s intentional or Siri is trolling everyone, Siri turns your 7-11 inquiry into a math problem.
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Game Center is the online gaming basis for many games in iOS and OS X, letting users play online, track scores, play against friends, it’s also generally required to use for almost every game played on an iPhone or iPad. When signing up for Game Center for the first time, plenty of us chose a nickname or username that was either our real names, an online nickname, or perhaps some oddball nickname, not really thinking much of the naming choice.

Well, it turns out the Game Center nickname is entirely public, and it shows in games and in leaderboards, so once you realize that your fellow gamer friends, family, and coworkers can see that nickname too, you may decide “DrunkGuy69” or “IHateMyBoss420” wasn’t the best choice of usernames after all. But don’t freak out too bad, you can switch it out with something else!
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Considering that so much of the functionality of iOS is dependent on the internet, it’s pretty frustrating if you can’t join a wireless network because of a mystery “Unable to join the network [name]” error popping up on an iPad, iPhone, or iPod touch. You may encounter this alert trying to join a wifi network as usual, or by trying to manually join a network:

With such a nondescript error message, it’s hard to know exactly what the problem with the wi-fi is, but for most cases you can resolve the issue fairly quickly with the multistep process described below:
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Two hugely important software security updates have been released for many Apple devices recently, and if you haven’t updated your software to the latest versions yet, you really should do it while you have some free time this weekend. Do this for all of your own Apple hardware, do this for your parents Macs, grandparents iPads, aunts iPhone, uncles iPod, cousins SE/30 (just kidding), everyone who owns an Apple device needs to update all of their operating systems to a patched iOS or OS X version as soon as possible.
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The latest versions of Chrome for iOS offer an optional data compression feature that uses Google servers to further compress web pages visited before accessing them from your iPhone or iPad. Put simply, toggling this setting can help to reduce your cellular data consumption when browsing the web within the Chrome app for iOS, and for some users it may even offer a bit of a speed improvement to their mobile web browsing experience too.
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Provisioning profiles are typically installed onto iPhones and iPads for development and testing purposes, but non developers may wind up with them on their iOS devices too, whether from testing an app or installing something like GBA4iOS from the web.

For non-developers, this usually goes unnoticed until they get one of the “Provisioning Profile Expiration” alerts on their device, informing them that a profile will expire in however many days.

As many users have discovered, simply deleting the related app does not remove the provisioning profile, which is often why they see the expiration alert. So, here is how you can remove the profiles from any iOS device.

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The systemstats process is used to retrieve information about system statistics and power usage, and though it usually runs unnoticed in the background, the systemstatsd and systemstats processes have been known to randomly go haywire in OS X, eating up 100%-300% or more CPU while slowing down a Mac.
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The Messages app is the native instant messaging client for Mac OS X which supports everything from iMessage, Facebook chat, to other instant messaging services. You can block specific contacts from sending your Mac any iMessages too, though you’d be forgiven for missing the addition of the feature or for simply overlooking it when scouring around in the Messages app preferences.

This article will show you how to block people in Messages for Mac.

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