scififan68, I think you should clean up cache
sudo rm -r -v /System/Library/Caches/com.apple.kext.caches/*

or better use AppleJack

or try -v -f

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10.6.2 Pcj 64-bit kernel | Mobo Asus P5LD2-VM Revision 1.03 945G/ICH7 Graphic Intel GMA950 | CPU Pentium 4 630 3 GHz HT
Sleep never wake up, Quicktime 64-bit crashed

10.6.2 Vanilla | Mobo GigaByte GA-EP43T-UD3L | CPU C2D E7500 | GPU GigaByte GV-N240D3-1GI Nvidia GT240 ( Full QE/CI )