"INVALID page faults, on the other hand, make your application or system crash."

Well, yeah; but then they're GPC faults, not "page faults", and they don't get counted the same way! > "This systems has 1/2 GB RAM and two 1GB page files."

Ah; OK, I misinterpreted the summary. Looks in that case like you're probably using all your physical memory; but Poser only has about half of that. Raising the memory priority may well convince Windows to give that process "more than its share". Worth trying, anyway. Of course -- you might also consider buying another 512Mb RAM. It's not that expensive now, and well worthwhile.