Lag/Low frame rate

Hello,

While playing guild wars/MOH online I have been experiencing lag and low frame rates frequently. I have tried putting the settings on minimum and am running no programs in the background but still receive heavy lag. I have updated my drivers for video card etc....
but my frame rate, depending on the map, can be as low as 10. Some maps up to 40's. I have a wireless router, which can sometimes cause ping spikes and lag for about two seconds, which is understandable, but what about the rest of the time? What's causing it?

Stats:
Nvidia GeForce 4 MX 4000
Celeron 2.40 GHZ
768 MB of RAM
Linksys USB 2.40 GHZ

Any help would be appreciated, Thanks

Is this a new problem? Were you fine before, then this just popped up or has it always been this way?
To get your icon back there should be some option in the nvidia menu. I don't know how it looks anymore since they just overhauled it.
Back to the problem:
If you just recently changed something, like adding a wireless connection or something, then try undoing and see if that helps. Also you say online, but does the problem show itself offline, too or only when playing via net?

Ah, don't be so hard on him wolfy . He's just trying to play MOH and UT2K4. Not like he's asking why he can't play Oblivion or FEAR.
Seriously though, wolfy makes a good point. Your hardware is seriously out of date. Just a new graphics card would help out. Keep your eyes open on the ebay. I just picked up a new x800 for $20.

Yeah, adding a video card should have helped. I can run UT ~30fps with a geforce3 on an old dell machine I've got kicking around. Are your motherboard drivers up to date?