Hello,
You are actually seeing more than one AS tabs because you have the same commands loaded more than once, I am assuming that you are using Advance Steel with AutoCad.
Type in the command "menuload" and you will have the window that shows you the loaded commands.
On that list, whatever is duplicated needs to be unloaded. Make sure to verify that all your loaded commands are of 2013.
If you need to load or reload any of these groups, when you click on browse you will have to go to the following location to find the files:
C:\ProgramData\Graitec\Advance Steel\2013\Steel\Support\Toolbars\2009
Note that you can only load them one at a time and the file that you are loading have to have the extension ".cuix"
If you do not see your file extensions, you need to configure that from your control panel, folder options, view tab and uncheck "Hide extensions for known file types".
thank you,
Gomez Marcellus
Graitec