I have one client machine with a rather strange problem. When they open Outlook 2010, the first attachment they try to open always takes around 2 minutes to load. After that, all attachments open immediately.
This affects all file types - PDFs, XLS, DOC, JPG etc all tested so far.
Windows 7 x64.
Other people with this issue seem to blame "DDE" but unfortunately there doesn't appear to be anywhere to configure this on Windows 7, only in XP.
Any ideas please?