I repetedly get "Connection with server has been lost. Now ending game. Please restart the game after waiting about 15 minutes."

And, I know this isn't because it's full...because I've tried sooo many times I should have got in atleast once.

My specs are...

Dell xps 420 with...

Intel Core 2 Duo 3.0ghz
4 GB RAM @ 800mhz
Nvidia 8800GT 512mb VRAM
500GB HDD @ 7200 rpm
32 mb Sound Card Creative x-Fi

So, like you I know it's not my PC to blame...but I am running on Vista...which is speculative that this is why.