Umm, proth_sieve_cmov is crashing, hard. All the time. I'm using an XP machine with the latest version of proth sieve, but every so often if just dies and asks to send information to MicroSoft. Is anyone else experiencing this problem?

AMD XP 2200+ @ 1.8 GHz

By the way, prime95 was running just fine for months, so I don't think it's a hardware issue.