Since last Monday morning, when I try to send emails using OE, a menu pops up
asking me to enter my email address and password. I do so, only for the menu
to return and return and return, without the email being sent. I can receive
email via OE, but not send. I know there's nothing wrong with my isp,
because a) I'e spoken to them and b) I can send and receive emails perfectly
well via the web.

My service provider says its a Microsoft problem. Microsoft (tech support
helpline) says it's a hardware problem. The hardware manufacturer says it's
nothing to do with them.

Any thoughts