I also seem to be having problems with both my cables. My connection to the pc and blackberry desktop is intermittent and I can't connect to my amp or tv.
HDMI works fine here in v2.0...I use it all the time. Make sure to use a quality cable (I use the Motorola cable sold on CB Store) and do *not* hook through any HDMI hubs, amp/receivers/etc. Go directly to the TV.