I have a problem with my setup and was wondering if anybody knows anything about this. I have a HTPC, panasonic tuhds20 HD directv sat tuner and a DLP projector. I just bought an extron SW2 VGAxi switch to handle 2 VGA signals. The signal from my computer runs fine to the projector. However, the signal from my DTv tuner has no picture. The tuner has a RGBHV connection. I have a RGBHV to VGA cable that hooks to the switch. I tried both inputs on the switch with no picture from the tuner and a clear picture from the HTPC. If I bypass the switch from the DTV tuner, then I have a picture on my projector.