Evolution will not send/receive all of a sudden

Anyone have any idea why Evolution 1.45 in SuSE 8.2 all of a sudden will not send/receive email on my wife's machine. This has been working until I installed Opera, I can get to the internet fine, am using sendmail (actually postfix), ifconfig checks okay. Checked account settings, they are correct. Any help would be much appreciated. (Don't know why these things always happens on my wife's machine) My machine is configured the same way and works fine. Art -- Sent using SuSE Linux and Ximian Evolution.