[Steve Roberts] “Got Norton Utilities/Antivirus? If so, try switching off auto-protect”
Better yet, delete Norton altogether. Symantec hasn’t gotten a grip on how to code for OSX yet. Their stuff creates far more problems than it supposedly solves.
The problem could also involve your ram sticks. OSX is more sensitive to ram defects than OS9 and nowhere is it more noticeable than in After Effects as it really crams the memory with data. Try removing pairs one at the time and see if you get any changes. Also don’t give AE more than max 75% of available ram and never more than 2 gig as it can’t use more anyway until OSX is 64bit all through.
cheers