stunningly cheap HDMI cables - ebay $1.17 each with free shipping. I bought six.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200596843955&ssPageName=STRK:MEWAX:IT
and yes, besides a softer non-sharp video picture, I've seen dropped pixels on a major scale..........might try another one of the HDMI cables, but right now I'm sticking with RGB.
Sucks though as I have like 8 HDMI inputs on the TV and only 1 RGB.