Digital Workshop

Hi
Hope somebody can help me. I have OPus Pro XE 04 and used to use it for creating lesson resources for my work as a primary school teacher. However, I've been off work ill for some 9 months and have now returned to work. I've created some new resources which I've exported as flex swf files. However, each time I return to the imp files (to amend them after closing opus and restarting later) I find I cannot open them. I either get a message that runtime has closed in an unusual way or trying to open the file causes opus to crash completely. Prior to this, I get a message that an autosaved version still exists. (please see attached screen shot).
Older files open fine.
Hope somebody can help as I'd like to use these files (amended) on one of my websites.
Thanks
Dale
www.earth-balm.com

Hi again
I've not had any replies from the forum or from digital workshop.
Is my problem an unique one? Has anybody else had the same problem at any time?
I'd love to be able to reopen and work on the files rather than have to begin again. Any advice would be welcome.
Thanks
dale
www.earth-balm.com

This is not anything I have ever heard of before. What happens if you create a simple single page standard Opus publication and save that?