Hi all, I just installed vista on my machine and now when I play counter strike source, it will only find 300 servers!! It should find 16000. And it is very difficult to join, iut says my ping is 2000!! Don't blame VISTA because when I tried another modem it found all servers.

If you are certain it is your router and not your config:

Try enabling universal plug and play, disabling the firewall and opening ports for CS:S on your router. Google that if you don't know how.