|This worked for me previously, no idea why though: |
Close Outlook, rename the .pst file to .old or whatever, then open Outlook, let it recreate a new .pst file. Close Outlook and then rename your original file back to .pst, overwriting the newly created one. Open Outlook again & see if it's recognised.
Hope that makes sense. As I say, it worked for me but only had to do it once so I don't know if it's a recognised repair, but you lose nothing by trying.
"I've always been mad, I know I've been mad, like the most of us..." Pink Floyd