See a Blank Red Dot on the Phone Icon? It’s Your iPhone Voicemail, Here’s the Fix
Aug 23, 2014 - 61 Comments
If you’ve recently made a change to your iPhone service or SIM card, you may notice a mysterious red blank dot on the “Phone” app of the iPhone home screen. Typically that little blank red dot means you have voicemail, but the iPhone can’t retrieve it, and it usually occurs in one of the following scenarios: the iPhone has just been restored or reset, the iPhone has a new SIM card inserted into it with a different phone number or service plan, or the associated phone voicemail password has been changed.
By Paul Horowitz - iPhone, Troubleshooting - 61 Comments
The Twitter for Mac client has a peculiar feature (bug?) which causes the app image cache to grow endlessly and without limitation. That means the Twitter image cache folder can easily become several gigabytes in size unbeknownst to the end user, and those cache files are also stored in virtual memory, which can cause unnecessary RAM usage and swapping on a Mac. Thus, if you use the Twitter app in OS X, you may want to manually intervene from time to time to delete this image cache, otherwise you’ll find your disk space slowly disappearing as the cached image files from your twitter stream get saved to disk, never clearing itself out. You also may get fed up with that manual cache deletion process and decide to prevent the app from saving any image cache, so we’ll show you how to do that too.
Apple has released the second version of the OS X Yosemite Public Beta. Mac users who opted in to participate in the public beta program for Yosemite are recommended to install the update. Alongside Public Beta 2 is also a new beta version of the redesigned iTunes 12. Both updates focus on bug fixes and feature refinements as the next version of OS X marches closer towards a public release in the Fall.
How often have you had a file open in one application on your Mac, only to need it opened in another OS X app instead? Fairly often, right? When confronted with that situation, most Mac users will do one of two things; go back to the Finder file system and re-open the file in the desired app, or open the other app and open the file directly from there. But there’s another way to re-open a file in one application from another, and it’s often faster and easier than the traditional methods.
Though most email services nowadays support the “Sent” outbox, where you can easily find all emails that you’ve sent out from an iPhone (or elsewhere with that email account), not all mail providers do. This is particularly true for POP3 accounts where the email will be downloaded once from the server then deleted from the server, only to be stored on your local device, whether that’s an iPhone or a computer. For situations like this but when you’d still like to maintain an easy record of all emails you’ve sent from an iPhone or iPad, you can enable an option in iOS Mail app called “Always BCC Self”. As the name implies, when this setting is turned on, any mail sent from your iOS device will BCC (Blind Carbon Copy) to yourself, providing an alternative method of record keeping for sent emails.
Have you ever wanted to share an iPhone picture with someone, but you’re concerned about them flipping through your camera roll and finding other photos you’d rather not share? If you want to limit that you have a few options available, but because the iPhone doesn’t have a specific ability to lock onto a single picture, you’ll have to rely on a trick or two to limit the photo access instead. 
The user path is the series of directories that command line programs are searched in order to run. For example, if you type ‘iostat’ into the terminal, then iostat will be run from /usr/sbin because “/usr/sbin” is part of your $PATH. Accordingly, users who frequently use the command line may need to adjust or add new paths to their terminal so that commands can execute properly. 
