game seems to work but shows nothing

[Lord_Chencho]

I have kubuntu 14.04 installed in a phenom II x4 955, 4gb ddr3, amd 7770 1gb ddr5 and Im having some trouble with ultratron. Game works from time to time and I can play normaly but almost the time the game starts, I can hear the music, even the pointer moves (I cant se it but moves) but the screen shows steam window only.