Outlook 2000 – Object Could Not Be Found

We have a user who occasionally receives emails with attachments that can’t be opened. The email is ‘viewable’ in the preview pane (there is no text in the email though), and the ‘attachment’ has no discernible filename. These do not appear to be spam/malware messages but are in fact legitimate emails. I had one of the senders forward the same email to us (the Help Desk) and it came through just fine, and we haven’t gotten any other complaints about this kind of problem from the more than 1000 other users that we’ve got, so that leads me to believe that it’s a problem on his system somewhere. Any ideas?