Infection

Hey guys, have some sort of infection which i can't seem to figure out.

I was playing a game on-line with one of my friends through direct-ip and had to turn off my firewall.When I exited the game I noticed my email scanner was reporting 2000 or so emails sent per min.I reactivated the firewall and shut down the offending processes but they keep restarting under different names.My net-stat has about 30 different items( which are all local addresses) and my email scanner keeps connecting to foreign ips.I ran a virus scan and it found 3 infections(an hour earlier it had nothing) which i removed but the problem is still there.I would really appreciate any help.Thanks

In the 2 mins or so i spent typing this I've sent just over 12000 emails

My PC has just blue screened twice in under ten minutes. I've been running 7 since the first beta and this is my first bsod. So I'm now typing this from Ubuntu.