Old thread but I thought I'd post a word of warning:
Really short HDMI cable (less than 6') can sometimes cause handshaking/reflection issues. If you're having probelms with a setup that uses really short cables, try 9-12' ones just to confirm.
I recently finished troubleshooting an issue I have having with my HDMI splitter/switcher that went away when a 1' Monoprice HDMI cable was replaced with the same cable but 12' long. The switcher was freezing and was requiring a power off/on to unlock it. Very repeatable. With the longer cable the problem went away. I have a bunch of identical 1' cables that I tried too, but to no avail. They all did the same thing. The problem cables work fine in other setups, just not with the combination of Monoprice HDMI devices I had here. So it's somewhat of a crapshoot.
The suggestion of not using really short HDMI cables is also echoed by some manufacturers of HDMI equipment (Lumagen for example).
P.S. I hate HDMI for reasons like this.
Edited by kal - 1/7/13 at 1:58pm