Outlook 2010 hangs on offline address

I have a Outlook 2010 User, when he sends and recieve email, the status box shows offline address book hangs. However, he can still send and recieve emails. I have tried deleting the OST, recreated outlook profile, and redoing the local profile on windows 7 .
 
Hi,
  • If you are working with an OST file (with an Exchange server), then enable the cached exchange mode because somewhere it makes processing of Outlook faster.
  • If the above suggestion does not work to fix this bug, go and Uncheck the Download offline address book, and then click 'OK' from Define send/receive Groups.
 
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