IE9+ vs IE8  - mobile menu 1024x768

IE9+ vs IE8  - mobile menu 1024x768

  
Hi,
the default resolution of our solution is 1024x768.
But when the solution is opened in ie8 we get the mobile menu and when is opened in ie9+ the desktop menu.
Is it possible to have the same behavior in ie8 and ie9+?
Is there a workaround  for this behavior?
Best regards
Well, the obvious solution is not using IE8. It's a really old, insecure version you may not want to support. That said, this is rather strange behaviour. May it be caused by the IE8 you have tested it on having more screen real estate consumed by toolbars and the like?

Thanks for the reply!
Across the organization ie8 is still used.
Also if you use the also if you use F12 developer tools and set the browser to ie8 we get the same behavior.
Only if you set the with for ~1040x768 we get the desktop menu and not the mobile menu. 
Heh, that's really weird. You may want to bug OutSystems about that :).