Thats the first thing I thought of but there are absolutely no artifacts or sparklies when I go from HTPC to Projector with the 30 ft run. Apparently something is being done or maybe just the signal is weakened in the switch when i run the htpc through the 990?

The cable I am using is actually a HDMI cable with Monster HDMI to DVI converters on both ends.

I might have to buy an outboard switch and see if it happens with another switch. I only have one DVI input on my projector so i need to be able to switch between sources reliably. Before I buy a switch I want to make sure there is nothing wrong with my 990.