Hey guys, I'm trying to help someone else improve their Outlook 2007 performance. He has been having a super laggy Office Outlook 2007 starting sometime early last week. Every time he tries to create a new e-mail it'll take several seconds for the New E-mail window to completely load; scrolling through his e-mail has become very choppy; and sending e-mails has become nearly impossible [he sent me a test e-mail yesterday around 5 and i didnt get it til 8]. He had over a 4GB .pst file which i decided was too big so i archived some of his e-mails yesterday morning. After i archived some of his e-mails [i'm not exactly sure how many, i just archived before May 1st, 2008] he seemed to notice a great performance boost. I thought the issue was resolved and i told him to keep his mail trimmed down and to delete the stuff he really doesn't need. In the afternoon around 430 he IMs me telling me the problem is back. any ideas?