Have you checked that there is not a folder-close filter running on the new mail folder?
Tools | Mail filtering rules | Edit new mail filtering rules | Rules applied when folder is closed...
I would also make sure that (a) deleted messages are preserved until closing Pegasus, and (b) the Deleted Messages folder DOES persist. That might give you a chance to catch something in the act.
<P>Have you checked that there is not a folder-close filter running on the new mail folder?</P><P>Tools | Mail filtering rules | Edit new mail filtering rules | Rules applied when folder is closed...</P><P>I would also make sure that (a) deleted messages are preserved until closing Pegasus, and (b) the Deleted Messages folder DOES persist. That might give you a chance to catch something in the act.</P>