Ping spikes in Windows 7 ultimate RC

Hello,

Well ill post spec upfront so its easy for you guys to help me

AMD sempron 3000+ S939 @ stock (although I can get it to 2.5 with stock vcore )
GA-K8N51GMF-9 Mobo
40gig seagate HD
2GIGS PC3200 ram

I have not tested any other games but I can if need be, but my problem is CS 1.6. If I get more then 4 players on my screen my ping will spike to about 180+ untill I look away, but FPS is fine (vsync 75). Also if the spikes are high enough they will lower my FPS to about 15, even if noone in on my screen. Also this is a fresh install from yesterday, I have all the updates and used the drivers for video and internet from microsoft and I also tried the nvidia drivers although they are for vista they still work fine.

Thanks for the help, and really appreciate it

Nope, not on either. And no, no dedicated video yet, my PC is in a HTPC case with a 260W PSU, so my HD4850 will have to wait till I get the rest of the $ I need for my real PC.

EDIT: I found the cause, I think its related to that new WARP implementation that Windows 7 has over vista. If I cap my FPS at 30 it does not spike but once I set it to max frames its jumps all over the place. So now the problem is how to turn it off....

I have tha same problem here, World of warcraft is unplayable since my ping goes to 7800 (yes, no mistaken zeroes here)

I also have the problem in most games as Counter-strike: Source and Battlefield 2

Me to have this same problem..... when i play and something happened then my ping is +100 and fps like 10-30