FPS in JO/JOE after update or card ?

[JimDirt]

Need some help here guys!! , i have been running a TI-4200-128 , i just got a FX-6800-Ultra-256
When i was playing JO/JOE with the 128 i was getting around 42-62fps ,lowest was 19 for a brief second or 2 , now that i have the 256 i get exactly the same fps and if i set the settings on the card to Quality , i get around 19-34fps
my specs are as follows:
MSI-K7n2-Delta(latest bios)
AMD-Athlon-XP-3000+-333fsb
Evga-FX-6800-Ultra-256-6.6.9.3 driver
1024pc2700 Dual Channel Ram
DirectX9.c
SoundBlaster512pci
WinXP-home-sp1(no other service packs or updates(hate them)
MadDog-PurePower-550wPS
1500dn/1024up-DSL-Actiontec 4 port DSL router
CPUtemp 109degF...Systemtemp 84degF at idle
CPU 113-116degF... Sys 89degF at full load

I noticed this after the last update, but i figured i would notice some difference with a $500.00 video card , basically everything seems the same as before i changed the card