I'm using Outlook 2003 SP2 in cached exchange mode. I frequently can't
save messages to folders, whether by dragging and dropping or ctrl-
shift-v.

The error is:

Can't copy the items. You don't have permission to create an entry in
this folder. Right-click the folder, and then click Properties to
check your permissions for the folder. See the folder owner or your
administrator to change your permissions.

I am the folder owner, however, and I have full permissions in the
folder properties. It is not a shared folder or a sharepoint folder --
just a regular folder. Sometimes restarting Outlook or rebooting fixes
it.

Any ideas how to troubleshoot? It doesn't seem like permissions is
really the issue.