[Mike Kommersmith]"We are also experiencing pixel "stair stepping" when sequences are paused in both Final Cut and CS5. When you play, the sequence looks good.
If you are looking at interlaced material, this is normal..as you are only seeing one field. Try deselecting "Remove field jitter when video is paused". Your resolution will be better, but you will probably get jitter.
Don't know about the HDMI issue. Mine works perfectly.
I'm having issues with this as well. I used the updated drivers to correct the Chroma issue but the HMDI Output signal to an Acer Monitor and Samsung LCD keep dropping in and out. They still haven't responded to my emails either.