Hi,

There are several factors that can cause the problem you are experiencing.  I recommend you try the following steps to see if it resolves your problem.

Step 1: Temporarily disable Third party programs such as Anti-Virus, Internet Firewall and anti-Spam software to test for a conflict.

Step 2: Create a new Outlook profile
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This issue may also be caused by a corrupted Outlook profile.   Please follow these steps to create a new profile to test:

1. Close Outlook.

2. Right click on the Microsoft Outlook icon on the Desktop and click Properties.  Note: If you cannot find it, double-click the Mail icon in Control Panel.

3. Click the Show Profiles button.

4. Click Prompt for a profile to be used and click Apply.

5. Click Add and type "test" in the Profile name box.
Note: Please don't choose the same name of your original profile.

6. Choose Add a new e-mail account and click Next.

7. Choose your email type and type the necessary information.

8. Click Next and click Finish.
                                                                     
9. Click Finish to exit.

10. Start Outlook.

11. Choose the TEST profile in the profile list and click OK. Does the problem occur in the new profile?

NOTE: If the problem is resolved in the new profile, you will need to import your data from the original profile. Please refer to the following Knowledge Base article on how to import
Outlook data:

Q287070 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
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