Hey Bob, I am also the owner of an IN76, and had the same issue with my Sony DVD upconverting player. For the life of me I could not get the HDMI to do the handshake. Thats when I found this little tidbit in their manual...
HDMI DDC: turns the EDID extension on and off. Some graphic cards
cannot recognize the projector’s EDID. By default, the HDMI EDID
extension is on (checkbox is checked) and the M1-DA EDID extension
is off (checkbox unchecked). Change these settings if you have trouble
using HDMI or DVI sources.
You'll find it in the menu under Service - HDMI DDC. I had to turn mine off to get things working. Hope this helps, and buy their extended warranty! I had my projector for a year and eleven months when it died on me two weeks ago. There is a fuse problem with that projector, so just a head's up. Simple fix under warranty, but likely expensive if not. I just got in under the wire, and I am purchasing the extended warranty shortly.
