JAMF provides access to some handy resources from Apple that can resolve many technical glitches and OS problems. These are basic troubleshooting and diagnostic applications that correct the most common errors found within OS X and they can be found within the Self Repair Section of the Self Service App Store.
(All descriptions taken from Apple's Support Pages.)
Apple Software Update: In addition to releasing new versions of system software at regular intervals, Apple also releases a stream of free software updates to enrich your computing experience. Mac OS X automatically checks weekly for software updates provided you have an Internet connection.
Fix Permissions: Disk Utility repairs the permissions for files installed by the Mac OS X Installer, Software Update, or an Apple software installer. It doesn't repair permissions for your documents, your home folder, or third-party applications. For more information on troubleshooting permissions within OS X see http://support.apple.com/kb/HT2963.
Verify Disk: Disk Utility can verify your computer's startup disk (volume) without starting up from another volume. This feature is called "Live Verification." For more information on the Verify Disk function within OS X see http://support.apple.com/kb/HT1782.
Self Repair: This is a set of utilities consisting of Fix Permissions and Verify Disk plus OS X periodic maintenance tasks scripted by Apple. For more information on these periodic maintenance Tasks see http://support.apple.com/kb/HT2319.