while playing multiplayer, it plays for a while, then will flash a black screen, then back to playing, then black again, play, about 3 times. sometimes it let's me continue playing, rarely. most of the time it appears frozen with a black screen and the last sound repeating. there is zero response, i have to ctl-atl-del and logoff user, then log on and it comes back to the game at the menu saying you've been disconnected, connection lost or something. i've tried several video settings and tried old versions and new versions of video drivers. intel core 2 duo 4 GB RAM Nvidia 8600 GTS Windows Vista 64 thanks for any suggestions. are there ports on my firewall i should be allowing?
