...I realize that I have mentioned this problem several times before, but I did extensive research on the problem, and STILL have not found any solution. The problem I am having with my Steam games is that when I install and run ANY Steam game, the screen turns completely black in the game menu after about 15 seconds, (sometimes quicker), and a grey box for Counter-strike: Source, and beige-for Half-Life 2 games and Day of Defeat: Source, appears in the bottom-right hand corner of the screen. As you have probably heard from other people, I can still hear the sounds of the buttons as the mouse goes over the menus, and the game DOES NOT freeze, but just turns black with a box in the bottom-right hand corner. Again, I have tried every suggestion to fix this problem, but I have still not come upon a solution. If anyone knows how to fix this problem, please help a fellow Counter-Strike: Source player out.