It happens in windowed mode as well as full screen, (dont wory i only use windowed mode)
I dont think it is hardware as i put all the settings to lowest and it still happens.

I have found a fix for this problem, even though it is a little amature.

If i log onto a server my lag will be very high; then if i window LFS and open up an internet browser the lag drops dramatically. I can then full screen LFS again

yea i used that and was getting very high readings, but for some reason when i minimized the game and logged on the forums the ping dropped down and stayed down as long as i had the forums open on a browser in the background.
Very strange.

When im playing online a get a terrible lagg and very high ping, but when i ping your master server the ping is very low.

i have also found that if i alt-tab another screen or messager ontop of lfs the ping drops dramatically.

I know its not my isp as i have got the to check the line 3 times and it is fine, i can play other games online fine like counter strike source.

any ideas?

i wouldnt believe the mx 7700 card would suck as it is in the new 7000 series, it would be more like a everyday use card but if your looking for something with a bit more kick i would highly recomend the Nvida 6600Gt 256 that is one majorly powerful card

Kimi Raikonen skin for the F1 Car