Hi, my GPU has red screened a few times on boot, I've read on forums that the GPU Tweak causes this but I have this uninstalled and it's still happened. I think it's only happened after restarting my PC after a Windows update.
^+1. Asus GPU Tweak is being a problem with many people. Try using MSI AB or EVGA Precision-X.
In addition, try this:
1. Install the previous version of the drivers which came with the CD. Only, get them off nVidia's site. Do a clean install.
2. Try lowering the clock frequencies by 20-30 Mhz. This seems to have worked for a lot of people.