Many Thanks Rob for replying
I have tried to do this but unfortunatly, this option is disabled on the RHM Menu.
I think the problem is related to the data file in question being the main mailbox file, which i opened a second time in error.
However, I have just fixed the problem:
1) Open Tools >Email Accounts
2) Select View / change existing email a/c
3) Click on New Outlook Data File
4) Create new file with different name
5) Close / Re-open then RHM menu close data file!
had to repeat to then remove the new data file and now all is well!
Again, Many Thanks
----- Rob Schneider wrote: -----
How do you close a Outlook data file?
Right mouse click on the folder which denotes the "file", and pick
"close". This disconnects this PST file from Outlook. Menu: File/Open
to re-open it.
Note: not normal to close these file unless you have aparticular reason
or are simply completely done with ever using it.