I got one of these units over 3 weeks ago, as soon as they advertised it I ordered one through Bell direct sales and got one sent to my house within 7 days of purchase. I am using DVI plus rca for connections. The software is running @ E470. When viewing normal SD its dark, when viewing HD its dark and guess what when there is a dark scene its really dark.
Other things I have noticed:
sound gone had to unplug overnight.
black screen when switching out to commercials when viewing HD
pressing the guide button shuts off IRD the odd time.
turning on IRD get downloading software guide
depending on HD signal source picture is not centered on screen when trying to adjust picture goes out of sync. could be issue with DVI not IRD
Personally when comparing to my 6000, 6100 is to0 dark period I phoned up tech support and they told me to turn up the contrast I told the f#c% if there is a setting past 100 to come over and set it up for me. Anyway I'm not impressed one bit, not one bit. They said they would send me a new 6100 to fix the problem but doubt that very much.