I HAVE SOLVED THE PC PROBLEM. IT seems that the new versoin of HDMI which I think is 1.3, is not really backward compatible to the older version (at least not on this toshiba) I had to turn off the 1.3 features and bingo it worked flawlessly.
This issue is addressed in the manual. Its not patently clear which is why I missed it on my first reading.
I quote "Some HDMI legacy sources may not work properly with your HDMI TV, please try setting the following options (Lip-Sync Latency and Deep Color) to Off. Adjusting these settings should allow your HOMI legacy source to operate properly
with your TV."