If you ever run into this condition, where the width of the tabs in the SharePoint 2010 Ribbon are not being sized properly.
For example:

You can easily workaround this issue by:
In IE8, change Zoom factor to something other than 115 or 125%, like this:
View –> Zoom –> 100%

Problem resolved:

Microsoft has confirmed this is an known issue with IE8 and a Browser zoom factor of 115/125%,
and provided me the above workaround. But good news I verified the tabs view correctly when
browsing with the IE9 release candidate with a zoom factor.
HTH someone.
Tom
Advertisement