Thanks guys.
I was talking to a colleague of mine today who said he has encountered this problem as well and told me what needed to be to correct it.
Instaed of rendering the clip(s) to a regular FCP .mov file, the file has to be render as follows:
File>Export> Using QT Conversion>Options> choose settingsd for QT movie.
I hope I did that right, as I do not have FCP, but am doing work from those files in AE7 (PC).
Thanx.