See if this helps:
Close IE and all Office Programs.
Start -> Run -> type "regsvr32 msxml5.dll" (without quotes) -> OK.
If still no joy run the Detect and Repair feature in your Office programs: http://support.microsoft.com/kb/822238/en-us
"How to understand the repair feature in Office 2003 and in Office XP"
-> "On-demand detect and repair".
Please let me know if the problem is fixed.
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Vincenzo Di Russo
Microsoft® MVP - Most Valuable Professional
Windows - Internet Explorer since 2003
My home:
My Blog: http://blogs.dotnethell.it/vincent/