Domino Connector issue w/ attachments

I have the most recent version of the connector installed.

When I receive an email with an attachment from a notes
user within my organization, I get the following message
when I try to open or save the attachment:

"The attachment can't be downloaded from the server. Make
sure your computer is connected to the network and your
Domino server is running, and then try to download the
attachment again."

I followed the suggestion in the knowledge base to not use
Word as my email editor. This actually worked for a few
emails that I had already received. Although, I have
tried to recreate that scenario, it hasn't worked again.

Is there something else I can try? I just can't go back
to using Lotus Notes!!!