Default [Q] Screen Rotation w keyboard dock

I play one game on Tf201. It plays in portrait mode. However when I go to chat in game it switches to landscape. Is there a way to force it to stay in portrait? The game is Kingdoms at War. The chat has sub chats which I cannot select when it switches to landscape mode.
Galaxy Nexus
ROM: Vanir 2/21
Kernel: DirtyV SR 2/23
Carrier: TING
Try Ting and save money