As some one already said make sure you updated the video card drivers. not from hardware manager in windows but from the cards original site.
ati.com for you .
1. Ive been playing for Vaegirs and we were at war with Khergit Khanate for about 50 days, i managed to capture 1 castle and they made peace. its been that way for like 130 days now :/ i already have like 130 knights in my castle waiting, but to pay the cuts i have to run around trading and...