Cannot open attachments or save attachments in Outlook Express 6

I seem to have lost the ability to open or save attachments with OE6. When I try to open a file, nothing happens (no messages). When I try to save a file it tells me " There was an error saving one or more of the attachments. Please check your free space and try again." I have tons of free space. I have gone to the "Security" tab and unchecked "Do not allow attachments to be saved or opened ...". I loaded Endora and everything works there. The problem is only with Outlook Express 6.