Thunderbolt display wakes up to horizontal shreds

After a few days of my new Thunderbolt display has a problem  - running with my mid 2011 11" MacBook Air (Lion / 1.8GHz Core i7/ 256 GB) .
When the screen wakes up, it momentarily (3 secs) displays the screen in thin horizontal shreds. As if I ran the image through a paper shredder. Then it resolves to the correct image. Standard hook up to MBA with built in cords.
I've read about problems with flickering screen - anyone else know about this?

See if there is a way to turn off CEC on the Philips through its menu system and see if that helps.

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    Matt M.

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