PC won't play vids taken on my Omnia

[Guest virocell]

This is my first post so go easy!

After synching mp4 vids onto my PC, on trying to watch them I'm greeted with the error message:

'Error -2041: an invalid sample description was found'

Anyone else had this problem? Quicktime and Windows Media Player both do the same.

It's not as if they are naughty vids or anything.

Any ideas please?