A couple hours ago, finally installing cats 4.6.
Athlon XP 1800+ @ 1.72GHz, Win2k SP4.
For the record, the install is going on two years old, two (or is it three--can't remember!) mobos, three main (OS drive) HDs (ghosted twice), three (soon to be four) video cards, two PSUs, three sound cards, and two monitors. Not a single hard lock, unaccounted-for reboot, or BSOD yet.