Thanks...This is a new install of OS X10.4.
One other thing Karen, there appears, a ''connection doctor''[?]-at some point, after clicking on the button to initiate, which maintains that the account is in fact enabled and working but attempting to send/receive[get mail], nada! the button to--send---mail in a letter is 'grayed out'....very strange really. no idea what to do.
the install went reasonably well other than this oddity.
One other issue--the digital-audio output[no controls over the volume].
I took the digital output cable from it's port and re-inserted it[after a reboot-this trick is a recognised [potential] resolve for this problem].