I installed SW2012 a couple of days ago and now each time I start up SW I get the message below, in an option box asking me to pick "YES" or "NO".  Neither option seems to do anything and the request continues to come up each time I start SW.   How can I get it to stop?

"The definition of the buttons in the default CommandManager tabs has changed in this new version of SolidWorks.  Do you want to update the default tabs with the new buttons?       Note:  If you answer yes, any customizations to the default tabs will be lost.  User-defined tabs will not be modified."