Xperia X10 Mini Pro - Help! Recorded video plays back green!

Hi all,

The X10 mini pro has developed a really weird problem. Video that it had recorded (and all subsequent video recorded) plays back green?
It did this on 1.6 and I have now upgraded it to 2.1 (still does it) then I did a factory reset and the problem is still there

If I play the video on the PC its fine, also the preview 'thumbnail' shows it as fine....

Also youtube and the preloaded videos such as introduction etc playback fine

Any body got any ideas please it is driving me mental

:(