Outlook 2003 hangs trying to open mails with attachments

Every time that a mail with attachments is going to be open (even through preview pane) outlook hangs. After that, even killing outlook an winword through task manager, outlook will never pass 16% when sending and receiving, so a reboot is needed.

I have installed Office 2003 Enterprise Edition (default installation). It's installed on a Win XP machine, with SP1 and every update available.

I also have Norton Antivirus 2003, also up-to-date.

I mention the Norton thing, because on a similar configuration (hard and soft) but with eTrust antivirus, it works just fine.

Thanks in advance.
jskrilecAsked:
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Pete LongTechnical ConsultantCommented:
Hi jskrilec,
This issue may occur in one or both of the following scenarios:
The Bypass proxy server for local addresses check box is selected in the Microsoft Internet Explorer options, and the HTTP connection to your Exchange Server 2003 e-mail server can be made through the HTTP proxy server on the network that you are connected to.
Outlook 11 has issued a local RPC call that is waiting for a remote RPC call to complete. This problem is more noticeable when you are using a slow network connection.
RESOLUTION
To resolve this problem, download the 331320 update package from the Microsoft Windows Update Catalog or the Microsoft Download Center. For additional information about how to download updates from the Windows Update Catalog, click the following article number to view the article in the Microsoft Knowledge Base:
323166 HOW TO: Download Windows Updates and Drivers from the Windows Update Catalog



Cheers!
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jskrilecAuthor Commented:
Well, I'm not using Exchange. The problem occurs with POP3 accounts.
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sunray_2003Commented:
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