Narrowed it down to the graphics card or the processor. Just realised I have onboard graphics, so I'm using that now. I've taken the graphics card out and am currently using the onboard graphics (
Nvidia GeForce4 MX Integrated GPU).
Don't know how this will handle at the LAN party, or on MoH or CoD...
If it isn't good enough for the LAN party, I'll have to borrow one, tis too close to buy a new one in time...
Thanks for all the help guys.