We have had several occurences of this problem, but I can't always reproduce it. When an Outlook 2010 user opens a file attached to a message, they get an error like this:
C:\Documents and Settings\username\Local Settings\Temporary Internet
Files\Content.Outlook\F2E0M??\filename.xls could not be found. Check the
spelling of the file name, and verify that the file location is correct.
This seems to happen for Excel the most, but we also deal with a lot of Excel files here. After the error, the program for the attachment stays open, but the file is not open. If you go back to the message and double-click the attachment again, it will open.
From what I can tell, this is not the same as the "object not found" that I am finding in my searches, since the program is opening.
I was wondering if anyone has come across this specifically, or has any ideas about the problem. This issue has happened in both XP SP3 and Win7, but always with Outlook 2010.