Mac OS X 10.4.9 Update Released
Looks like we’ve gotten one step closer to Leopard with the release of Mac OS X 10.4.9 today. Plenty of updates, fixes, some new features, and performance tweaks are included. While it’s unlikely there will be any problems with the update, some prudent users often wait a day after a release to insure a trouble free update, figuring that if there should be any trouble it will exposed by the second day. Whether you install it today, tomorrow, or next week, it’ll be waiting for you in Software Update. Read on for more info directly from Apple:


I like Dashboard a lot, I really do, but it can be an awful memory hog even when it’s not being used. Once you hit F12, the widgets are loaded and don’t quit automatically which makes accessing them later faster, but it also wastes system resources. It’s not uncommon for each widget to take up 15mb of real ram and over 300mb in virtual memory. Having a bunch of widgets open aimlessly in the background can lead to system slowdowns, so here are three different ways to free up memory and kill the Dashboard temporarily.
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If you’ve ever launched Activity Monitor or the command line utility ‘top’ and been confused at some of what you see, you aren’t alone. Much of the output is self explanatory (like percentage of CPU usage), but some of it is meaningless without a little explanation, such as the specifics of the System Memory tab. A good read on the Bits About Bytes blog offers an explanation of wired, active, inactive, and free memory, and what all this means for your Mac and its performance.
This is a list of eleven startup key commands that every Intel Mac owner should make note of. From reseting your NVRAM, starting up in safe mode,

