That is usually an indication of a corrupted image in the current folder where it is trying to display thumbnails. To find the offending image, you could try viewing the thumbnails or switch to filename only (no thumbnails) and then view them if there are not too many.
Regards,
Mike
Thanks Mike,
Your answer helped me solve the problem. I think!
For the past week or so have been working on a collection of Macro Backgrounds all in one folder, and then printing them out for a collection.
Every time QU opened it was into that folder and I would get the error message. I did not realise the connection until your reply.
I have now moved the files to another folder and deleted the original folder. So far things seem to be OK with no error messages. Hopefully!
Regards.
-Roy Sletcher-