Horrid Freeze Problems

[-Logan-]

Hi,

Recently I upgraded my OS from Windows Vista to Windows 7. Everything went nicely, but recently I ran into a major problem when playing Regnum.

I seem to randomly get screen freezes when around many players at once, especially in the middle of a big war or when fighting a boss. I have no idea where it comes from, but I believe it could be from when many players cast powers at the same time. The freeze makes my entire computer go haywire, the audio begins to cut rapidly like a chainsaw, and it usually lasts around 10-15 seconds.

Any help on this issue would be greatly appreciated, because the game is barely playable for me at the moment. I already did re-installs of Regnum and that didn't solve the problem.