On an XP Pro machine where I am logged on with a network logon and Outlook is using a .ost file, when I send an email, Outlook freezes and I have to use task manager to force quit. I have tried running repair. Before I ran repair Outlook did not show up in my Programs folder. Odd that it had disappeared but still lauched from my alias. ANyway, ran repair and now all MS Office programs are showing up but Outlook still freezes and is only doing that when I send an email. Everything else about the computer seems fine. I also use AVAST and tried turning off all shields. No difference. I can receive emails, open emails and navigate around, only when I send, it freezes. I have posted this question a couple of times and no fix, yet. Thanks for looking at it.