> thanks, can you give me some direction as to how to look for those files and recover them?

Try  the following procedure.  This has worked for several others to restore
the functionality of the  message folders:   

1.      Use Help | About Pegasus Mail | Info to determine your mail directory.  Exit Pegasus mail.   

2.    Go to the HOME mail directory and look for the MAIN.PMM and MAIL.PMI files.  If they are missing then there is not much you can do.  If they exist then the hierarch.pm is probably messed up.   

3.      Rename the file HIERARCH.PM in your HOME mail directory to HIERARCH.SAV.  

4.      Run WinPMail.  Your HIERARCH.PM will be re-created and should start working correctly.  

Note:  This will delete any tray structure you have created and it
           will have to be recreated.  The process will not affect any
           mail of mail folders you have, it only affects the display of
           the folders.    

I ran AVG 8.0 Virus check and my main folder in Pegasus mail disappeared. Based on the size of Pmail file in My computer the files should still be in my computer. How do I restore the folder? I am using Pegasis mail 3.1.

I sounds like AVG V8 has quarentined the Main folder as it has detected a virus or other threat.  You should check AVG V8 Virus Vault and recover the file. It will have a filetype of .PMM    You should then update the Realtime scanner to NOT scan the Pegasus Mail NewMail directory.

Martin 

AVG emptied the virus vault because there was too much in it. Could it have deleted my entire Main Folder?

Yes it could have done rthis, that why I never let a scanner scan my mail directories.  That said, the main folder generally is called MAIN.PMM & MAIL.PMI and located in the HOME mail directory.  If the MAIN.PMM still exists you can recover.

thanks, can you give me some direction as to how to look for those files and recover them?