Comment 10 for bug 383927

I've encountered this on 9.04 as well as on 9.10 when I recently switched (clean install, with few config directories moved, but not nautilus) in my video folders. I'm using 64bit version of ubuntu.
it looks like there's some problem with creating miniature, except nautilus doesn't replace file icon with miniature, but creates it's own icon for that file. sadly, if there are other files and directories, I can't see them at all in nautilus if this happens.
Sometimes it helps to get to another folder, sometimes it does not. Not even reboot helps.