TV.Adobe.com videos fail to start - other flash no problems - W7 64bit

I have followed threads and suggestions relating to TV.Adobe videos not runnig but have failed to find a solution.

Any value adding experience of successfully running tv.adobe.com video with flash on W7 64bit in any browser appreciated

New PC Windows 7 64 bit Pro , Chrome 13.0.782.112, Firefox 6.0, IE9 none run Adobe TV. Stops with flashing/occulting grey light on black screen but never starts

Other flash sites seem to be OK e.g. Youtube. Latest Flashplayer 10.3.183.85 . No joy. Uninstall reinstall No joy.  Chrome disable/enable no joy as plug-in or integrated. Flashplayer 11 beta still no joy - all permutations of local and global settings make no diference.

Completely stumped all interrogation says the 64bit platform version FP 11 no changes make any discernible difference. Is it configuration (ATI 5450 card (latest driver), i7 4core)? Is it Flashplayer?  Is it Adobe TV?  At my wits' end.  Any help appreciated.

Thanks in advance

(Cross posted as bug report for FP 11 beta)