If I open a 2003 xls file in IE 6.0 some menus don't work, for example, Edit,
View, Data. They are not disabled, simply nothing drops down when clicked.

I have tracked down the problem to the Excel11.xlb file. If I remove it all
of the menus work. If I add it back, some stop working.

I have seen this on several machines and is fairly easy to reproduce. If
you customize your toolbars in Excel enough, then open a xls in IE some menus
won't work.

Is this a known issue with Microsoft and if so is there a fix/workaround?

Ryan