I have an ATI Radeon 4550 GPU in my PC with the latest drivers installed for my OS (Windows 7 Ultimate). I use the HDMI connection to display video and audio into my 24in. Sanyo HDTV. When I first boot, the picture looks crisp and sharp with no problems. My issue is when I turn the moniter off, then back on, the signal degrades a lot. Windows says I'm at the same resolution, but the image is blurry and grainy. The only solution I have found to is is to restart my PC. What should I do to make this stop happening?