Recover from application crashes

This may be common knowlege for Unix geeks, but for average Joes this may be lifesaving information.

If a program crashes, you can kill it by right clicking it's dock icon and hitting "Force Quit". If that doesn't work, you can launch "Activity Monitor" and kill a crashing program from there. Just highlight the program that's going down and hit the quit icon, then hit "Force Quit". You can also press Ctrl+Alt+Escape (Command+Option+Escape on a Mac keyboard), choose the application you want to quit and then press the button "Force Quit".

Very good for stopping a runaway Deer Park from taking the system with it as it spirals down...

Messing With Drivers

Are you having trouble getting a kext (kernel extension) to load?

• Here is the command to make them load:

     sudo kextload /System/Library/Extensions/SomeDriver.kext

• To unload, use:

     sudo kextunload /System/Library/Extensions/SomeDriver.kext

• For more information about the loaded kext's, use:

     sudo kextstat

• If it still won't load, type this:

sudo su
chown -R root:wheel /System/Library/Extensions/SomeDriver.kext
chmod -R 755 /System/Library/Extensions/SomeDriver.kext .