Two days ago, I started getting the GSOD on my Sapphire 5850. I tried installing catalyst 10.1, the 10.1 hotfix, 10.2, and I even went back to 9.12. Nothing worked, I kept getting the GSOD and Verticle Line Corruption. In the end, I put in an older 5770 with no problems. Does anyone have an idea when this GSOD problem will be fixed? I hate having to use a 5770 for games, when I have a MUCH better 5850 sitting in it's box!