Hi,
The problem you are experiencing often occurs when Outlook views or the Outlook profile has become corrupted. I recommend you try following steps.
Step1: Reset the Outlook Views
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1. Click the "Start" menu, and then click "Run".
2. In the Open window, type "Outlook.exe /cleanviews" (without quotation marks and there is a space between outlook.exe and /cleanviews)
This causes Outlook to recreate all views in Outlook. If the problem persists, try the next step.
Step 2: Create a new Outlook profile
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1. Close Outlook.
2. Click Start menu-> Control Panel. If Control Panel is not in Classic View, click Switch to Classic View, and then double-click the Mail icon.
3. Click Show Profiles and then click Add. In the New Profile dialog box, type a descriptive name for the new profile in the Profile Name box, and then click OK.
4. In the E-mail Accounts dialog box, click "Add a new e-mail account", and then click Next.
5. Select the appropriate server type for your e-mail account, and then click Next.
6. Fill in the appropriate information as prompted, and then click Next and Finish as needed.
7. Click the "Prompt for a profile to be used" option and click OK. This way, you will be prompted for a profile when starting Outlook.
8. Restart Outlook and select the new profile.
If the problem does not exist after creating the new profile, please refer to following Microsoft Knowledge Base article to move your data in the old profile to the new
profile.
287070.KB.EN-US OL2002: How to Back Up, Restore, or Move Outlook Data
<
http://support.microsoft.com/default.aspx?scid=KB;EN-US;287070>
Regards,
Scott Atkins MCSE, MCSA
Partner Technical Lead - Outlook
Microsoft Technical Support
for Platforms and Business Applications