Spring RTS Engine

Solved. As you said i had High Performance checked in image settings, i turned it one level down and its worked like a charm. I can play and alt-tab freely now. Thank you very much mister.

I have updated my drivers to the latest and now its even worse. Even without minimalizing my map is black now with red-green-blue horizontal strings. I can only view map right from very close distance. My graphic card is GeForce FX 5200 (very very old computer). Any thoughs?

After i minimalize my game (atl-tab) and back to it, my map looks like on the picture below. Tried on various maps. I have the lates version of spring and i run the game maximalized and "Fix rendering on alt-tab" checked on. I just getting know the game but i like it very much. Any help/ti...