I just recently purchased the Monoprice 5x1 HDMI switcher. I'm running a Toshiba HD-A2, Sony BDP-S300, and Scientific Atlanta Explorer 8300HD through it to a Sony KDFE42A10 television.
For some reason, I can get audio, and on my TV's HDMI input I can even see the flash indicating that the HDMI is engaged-- the audio from an HD-DVD plays, but there's just no picture. I've tried both the older HDMI cable I had been using before I got the switcher, on the HDMI out port of the switcher, and one of the newer cables I purchased when I bought the switcher, with the same result.
Anybody have a similar problem with the Monoprice 5x1 switcher?
Update: Both the SA 8300 HD DVR and BDP-S300 work fine with the switcher-- I've gotten picture and audio for both, and switched between them just fine. But the HD-A2 is still giving me audio but no video.