Dell Dimension 4300 DVI to HDMI Woes.

So I have a Dell Dimension 4300, an older rig, hooked up to my Denon AVR-160 (Via DVI to HDMI), Which is hooked up to my Samsung 42” LCD Tv. All works fine….. Until I turn off the receiver. I am still able to VNC into the machine, but the display on the TV just goes blank once the TV & Receiver are power cycled. Currently to fix the problem I have to restart the computer.

Any Fixes?