I get no errors and the emails just disappear, they are not stuck in my outbox, I don't know where they go as it appears that they were sent but I never get them on my laptop and I sent 2 other ones to colleagues that never got them.
I clicked on help on the OE toolbar and it says version 6 but this computer is old, I got it when XP first came out so I'm not sure how it would have the latest version. I don't even think I ever installed SP3 on it, just SP2.
Outlook 2003 is on my laptop running the paid version of avast, I have no problems with that computer. The problem is on my desktop with Outlook Express running the free version. Hope I cleared that up.
I have been running this computer with the free avast and OE for years and haven't changed anything recently so I'm not sure why this happened, first with the incoming mail and now with the outgoing several weeks later. I will go read the link you sent now and see if it helps.
Thank you.