I have upgraded to Outlook 2002 over 2000 in Windows 2000. When I try to view the contents of my 'Sent Items' folder all I get is a message saying "Unable to display the folder. The folder is full." I can get round this by doing a search, finding all the files in the folder and then moving them to another folder but this is obviously a silly way to have to do things. The message is there whether there are 0, 2 or 36 items in the folder. Any clues as to what is wrong?