I'm using a Asus G73SW BST6 laptop, and my GPU is a geforce 460m. The laptop is a little over a year old. When playing a single game(Garry'smod) the screen will turn completely green or blue after 15 min or so, but only in game. I can still move and sounds play as normal, but I cannot see anything. I can alt+tab easily back to the desktop, and I can close the process and start the game again just fine. My temp when this happens is only about 70C. I'm in the process of updating my drivers just in case, and I've already validated the GMOD install. I'll edit this post once I restart and test if this happens again. Is this my graphics card dying? The only thing I've done recently that's out of the ordinary is I put a SSD in my second hard drive bay and am using it as my boot drive, so I had to reinstall all drivers and windows. I find it strange that it's only gmod that has this issue. CSGO, ARMA2, Minecraft, saints row 3 all work. It's only Garry's Mod.