After a major crash & restart in AH2 my framrates droped to less than 1/2 of what they were b4. No amount of tweaking, even reloading xp didn't help. Finally I opened my case & found both my mobo & vid card fans had stoped. After replacing them with larger fans my fps is higher than ever.
System is AMD 2400+/G4 TI 4200/KT400(GA-7VA) mobo/512M ddr
New test results with v-sync off
1 59fps@49.0
2 58fps@46.1
3 73fps@44.6
4 102fps@41.7
looking up in tower 326fps@41.1