Hello ubuntu community! If I could please get some help, I made the switch to linux last week and I am really enjoying it so far but I have a problem my novice mind cannot remedy.

I am trying to play a steam game (DoD:S and CS:S) using PlayOnLinux and the game starts up just fine but as soon as I join a server I am missing text and my mouse is unresponsive other than the left button.
Any help would be greatly appreciated