While trying the MS Office 2010 beta version, I came across the strange problem. Send/ receive was not working after it imported the settings from Outlook 03.
It was very difficult to trace why it was not working, as it carries on processing and process never stops.
Then I started Googling for the same and got a hint from following link-
My problem got resolved when I killed OUTLOOK.EXE from task manager and exited those send a smile/frown from the tray.