Shoutbox

Sorry, Matty, this my first time in ANY forum.  To clarify, P.S., or PS, is Englis for Post Script, in other words, an addendum to the main body of script, ie letter, IM conv., and sometimes used slangily to add to a vocal deliverance.
I received notification in popup, as hoped.
I received the correct number of emails in Outlook Express, fine.
I closed OE (yes, that's Outlooke Express) and began an IM conv.  Friend had to suddenly sign off.  I left the conversation window open, nontheless.
While friend was still offline, I opened OE to add a bit to the interrupted conversation.  (Create mail)  When I sent the new email, it did not send, neither from the top of the letter "Send," nor from the top of the entire OE toolbar, nor from Send/Receive All.
Each time, I got the same error message that I get when I have tried to send when disconnected...but this time I wasn't, I was definitely connected.  The numbers aren't coming too me at the moment, exactly, but it's something like 000080...anyway, it says, "Cannot find server.  Please be sure you are connected to the internet,"  I WAS connected, but my letter remained stuck in the Outbox.
However, when I shut the conversation window and signed out of messenger, it Sent itself immediately.
Later on, I signed onto Messenger again, but did not start any conversations, and Send worked again, as usual, when I sent another email.  Normal operations applied.
This never happened until I configured Plus!3.50 to notify my of emails that arrive through my isp in OE.  Soon after I set it up, I shut down for the night, and when I signed on again today, was delighted to be notified of that mail.  It is not a problem with OE, and having an open conversation window never before interfered with mail, incoming or outgoing.
Since all evidence seems to point to a bug, I thought I ought to tell someone.  I'd hate to have to close a conversation window every time I wanted to send an email.  There is the possibility that the problem only arises when a conversation window is open BUT a participant has signed off.
I will keep you informed of future developments.  Thank you for your concern.