Nothing should be lost in your file. You can try this hot fix: http://www.softwareideas.net/SoftwareIdeasModeler.4.95HotFix.zip
It fixes also the problem with multi-object lifelines.
This hot fix will be included into the next official release, which I plan to publish this week.
Reply To: RE: corrupted file or broken load routine
Nothing should be lost in your file. You can try this hot fix: http://www.softwareideas.net/SoftwareIdeasModeler.4.95HotFix.zip
It fixes also the problem with multi-object lifelines.
This hot fix will be included into the next official release, which I plan to publish this week.
Dusan Rodina - softwareideas.net 2 May 2011 14:32:34