serious lag in BF2

[hardkore]

hey

Just had my new rig built (in sig) and BF2 is running like a dog! My old system was...
athlon xp 2500+ @ 3000+
radeon 9600pro 128mb
1gb of ram (same stuff)
abit NF7-S mobo

My new rig i would have though would run BF2 nicely at medium everything at 1024x768 but how wrong was i! I know i really need to get 2gb of ram for it to run good but i dont understand how my old pc could run this game on medium fine and my new system runs it really choppy at low/medium. I have installed the Cat 6.1's because i heard the 6.2's make BF2 lag. It improved the speed abit but its still running crappy.

any ideas? Also using the latest BF2 drivers and all other drivers are up-to-date.

EDIT: also i have a 1.1mb line and its not connection lag. Ive noticed the lag makes your weapons jump up and down really quickly when you walk, dont know what that means?

cheers

 

[hardkore]

my ping is usually between 20-40. I know 2gb makes the gamr run real smooth but i was asking why did my old system run better than my new one?

 

[hardkore]

yea maybe i suppose. I have one ocz stick and one ballistix but the ballistix died. Now using corsair xl ram and ocz.

 

[hardkore]

ok ill take a peek now. Happy it isnt just my pc and other people have the problem.

 

[hardkore]

hope these fixes work Been dying to try bf2 on my new system. Will post back results

 

[hardkore]

just letting you guys know i tried the link to the fix Zefan posted and all is now running well Thanks to everyone who helped me sort this out! The game gets abit jerky from time to time in heavy combat but atleast its playable now.

cheers