These fixes used to work, but sometime in the past few weeks this problem has reappeared on my Intel Core Duo -based system, PP 1.5, Windows XP.
Have tried re-installing PP and then the Adobe Media Encoder 1.1 Update, but to no avail.
I’ve also tried restricting PP to using 1 processor (Task Manager/Affinities) but this failed to solve it, too.
Any ideas? Maybe some Microsoft Windows update has undone the previous fixes? Any known SP3 problems like this?