Snake,
2 things come to mind that you may want to try.
- Check the settings on your video card. I have an nVidia in my HTPC and there a checkbox to force TV out. The "help" says to check this on if you can't get a picture on your TV.
- I have an LG 32" and read in a forum that if you want to display a PC through the HDMI port then you have to label the TV's HDMI input as PC in the TV setup menu. Maybe your Sharp behaves the same way.
I would try number 2 first.
Congo
Panny TC-P60GT50, Vizio SB3651-E6 Soundbar, Harmony One, Android Box