KB Article: http://support.microsoft.com/kb/305982
When you try to open or save an e-mail attachment, you may receive the following error message:
Cannot create file: file name. Right-click the folder you want to create the file in and click Properties on the shortcut menu to check your permissions for the folder.
I have a message in my out box that I cannot send, delete or move to another folder. At the same time I cannot receive mail, when showing progress it gets to full download but then gives me an error and does not download.
I also had the problem that I couldn't send and delete the messages just like Glen Harris ad it was pretty much annoying.
I hop it's fixed by now as I'm going to work at a place where I'll be using Outlook a lot.
PDF viewer http://pdfviewerdownload.net/
fix it isn't working, have windows XP - it only happens on certain excel documents.