OE6 Error message with no details

[graphics grunt]

this has been driving me NUTS!!!

lately..any time i go to send an email....i get an error message that some
of the tasks could not be performed....and am instructed to look at the
details.

well..there is nothing in the details dialogue box!

the email DOES go thru...but it languishes in my outbox and never hits my
sent box and i have to delete it or save it.

any ideas?