I am using Outlook 2000 with XP SP3 on my workstation. I have Outlook 2000 installed on other machines and it runs much faster. After reading old threads, I started Outlook in safe mode and it ran much faster. It seems to only be slow when there is a window open like when I double click to read an entire email. I found my extend.dat file and renamed it and restarted Outlook without any real speed improvements. I seem to have tracked it down to when I use the preview pane to view emails. When I turn that off, it seems to speed things up especially when navigating away from an open Outlook window to another program. I really like the preview pane. Is there any way to keep this option and still speed up my outlook? Thanks.
Thanks for the reply. I have not installed any additional add-ins that were not installed at installation. I believe the ones installed are: Delegate Access, Deleted item recovery, net folders, Exchange extension commands, Exchange extensions property pages, Windows CE support, Redemption Helper Outlook Extension, This is happening on only 1 of 4 desktops I have that are running Outlook 2000 with my Windows 2003 Exchange Server. I remotely get mail both using OWA and my iPhone without issues. I am not using Word to read .rtf messages. This is an old machine and only a recent problem. I do save either a .pst or .ost of my mail on a separate folder of my server every month. I just wondered if the lag was outlook trying to find the .pst across the network but I don't think that is the problem. Any suggestions other than the fdisk/reformat/waste a day rebuilding??