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The latest round of Apple EFI firmware updates tackles Thunderbolt, sleep, and Wi-Fi issues.
Apple's latest version of OS X Lion is just a small driver and core services update that does not appear to address some prominent issues people are having with their systems.
If you have used a Western Digital Firewire hard drive with your Mac, and have upgraded to Snow Leopard, you may run across an error where the "IOFireWireWDHID.kext" extension will not load. This may happen immediately after updating, or may happen whe
Users may find that kernel panics can occur when running system utilities like Time Machine when other programs are installed and causing issues.
Mac users who have installed the nVidia Quadro 4000 GPU may experience problems with OS X 10.6.7. Here are some approaches to fixing this problem.
Some owners have noted an issue with Apple's latest MacBook Pro model (early 2011), where the machine will start up to the gray Apple logo screen without a progress indicator and freeze. Apple has also noted the issue, releasing a knowledgebase article to help with the situation.
OS X outputs many warnings and errors that can be seen in the Console application. Some users have found errors involving the ability to create, access, or update caches; here are some approaches for dealing with these errors.
Fixes for kernel panics and problems launching.
Symfs.kext error message: How to resolve
A fairly typical problem for iterative Mac OS X updates, though more frequently experienced with this release.