ASRock Z77 Extreme4 Core i3570k Gskill Ares Blue 2x4gb DDR31600 Sapphire 6850HD 1gb WD Sata Black Caviar HDD Sata3 LG DVD+RW Sata3 OWC Mercury Pro EHD USB2 LG IPS235v 23" monitor Focusrite Scarlett 2i2 USB2 Interface Running 10.8.2 It seems stable but Im still having USB issues. Before it would lock up instantly as soon as I put a USB Flash drive or Camera in any of my USB ports. Disabling USB3 controller helped things a lot, but Im still having the occasional lock up. When I updated to 10.8.2 it overwrote my org.chameleon.Boot.plist. When this happened the USB lock up came back. But when I renetered my old settings, namely GraphicsEnabler=0 and PCIRootUID=0 it seemed to have fixed things. Would USB lock up be attributable to incorrect graphics kexts?