Good evening all. Recently bought a new pc and playing call of duty 4 on 1024x768 on low gfx and on lots of maps getting low fps, bugging me bigtime as i expected it to be superfast!! 
The following are the specs!
Intel quadcore q6600
4xcorsair 667mhz RAM
512mb Nvidea 8500gt
320gb hdd
19" monitor
Desktop resolution is 1280x1024 and is picture perfect outside of call of duty 4.
I'm running vista and have been told that performance in new dx10 games generally is not the best option. My gfx are all running in low for call of duty at the minute. Here's a link for the game requirements:
http://www.yougamers.com/news/12705_call_of_duty_4_system_requirements_revealed/
Is my gfx card poo enough to give me such a low fps in this game or should i straight away uninstiall vista and install xp home? Any tips or advice would be great!

The following are the specs!
Intel quadcore q6600
4xcorsair 667mhz RAM
512mb Nvidea 8500gt
320gb hdd
19" monitor
Desktop resolution is 1280x1024 and is picture perfect outside of call of duty 4.
I'm running vista and have been told that performance in new dx10 games generally is not the best option. My gfx are all running in low for call of duty at the minute. Here's a link for the game requirements:
http://www.yougamers.com/news/12705_call_of_duty_4_system_requirements_revealed/
Is my gfx card poo enough to give me such a low fps in this game or should i straight away uninstiall vista and install xp home? Any tips or advice would be great!