Same here... who expects the roof to cave in after a QT and GB update???
I was just able to .... well. go through ... repair permissions.
From my MBP I got:
Warning: SUID-file "usr/libexec/load_hdi" has been changed and will not be repaired
....
Warning: SUID-file "System/Library/CoreServices..../OwnerGroupTool" has been changed and will not be repaired
WTF??????? Nine SUID-file warnings after an update??
My MDD is still trying to get through Repair Permissions...
These are 'normal' for 10.5.1 at this stage. Just live with them. Nothing to worry.