Hello again. Computer uses intel HD graphics card. I dont have any issues with any other wxWidget applications. An this computer (it actualy notebook), runs Doom 3, Doom 3 BFG and all VALVE games without any problems. So there is no driver problems. A have another PC with NVIDIA card and on this PC does not have graphical gliches, but all other problems are still there. Both PC have same software and updates except drivers.