I have a new PC. AMD Quad core 3.6 Mhz CPU, 4 Gbytes 1600 Mhz RAM, Gigabyte GA-990FXA-UD3 MB, I,8 Terabyte WD HD. All drivers installed correctly. It worked great until this afternoon. I developed an issue with the screen saver that Windows did not seem to help me with. Today, when the screen saver again stuck, I hit the power switch on the back of the PS. This has worked numerous times in the past three months of my PC's operation. This time, after the Gigabyte first screen, the display stopped with a single cursor flashing. Eventually, the words "Reboot and select proper boot device or insert Boot Media into selected Boot Device and press a key" appeared and I guessed that I was screwed. What, if anything, can I do short of a format of my HD and a re-installation on Win 7?