This issue can occur because of a compatibility issue with programs that use a GetDispInfo callback routine and the Accessibility Aids portion of Internet Explorer 5.01.
To resolve this problem, obtain the latest service pack for Internet Explorer version 5.01. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
267954 How to Obtain the Latest Internet Explorer 5.01 Service Pack
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Internet Explorer version 5.01 Service Pack 1.
Note that this behavior does not occur in Internet Explorer 5.