Can anyone help me out? I'm trying to get TA:K to play in Widescreen or window mode. When I set it to 1920x1080 (my native resolution) it doesn't change. Can anyone assist? (Also would like help with window mode if possible.)

I know this is an old post, but just in case -

I changed my copy of TAK to 1366x768 and it looked like it didn't change. But when I launched a game, it did change. From what I can see, the menu runs at something like 640x480 but the game runs at whatever you've set it at.

Also, someone else has mentioned how to get it windowed: http://www.gog.com/en/forum/total_anihilation/flickering/post16