Odd image problem

I’m gonna try my best to explain this:
I have a full flash site, with an archive that has a scrollpane and screenshots of links. The archive file is a separate swf from the main file, and it’s loaded through loadmovie. For some reason, and on some platforms only (Flash v6 I think) the small images/screenshots show up as think horizontal lines in the colors of the image, but obviously not the image.

It’s easier to understand if you go to: http://www.ezeta.org/en/FULL.html and click on archives.

I’ve made my site with mx 2004, but I export most files as v.6 I think. I’m guessing it’s most likely an incompatibility error.
Help appreciated.