Hello, I finished installing OS X 10.7 Lion a few weeks ago. Things have been going well until recently, as when I play Java games (like Minecraft) and ejecting the drive using the key on the Apple USB Aluminum Keyboard, kernel panic might occur (It does not always happen). The message shows that com.apple.ATIRadeonX3000 is the culprit. Attached is a screenshot I took when the Kernel Panic happened. My computer configuration: Intel Core i7-930 2.8GHz Gigabyte GA-X58A-UD3R Rev 2.0 (FF BIOS) 6GB of RAM Sapphire ATI Radeon HD5850 1GB Any help would be appreciated. Thank you so much!