Hi,
Success at last!. It's only when you work through a problem do you realy learn.
I had success. If this ever happens to you then this may help, If your taskbar in windows is locked then unlock it, move the taskbar to side of display, Back into mplab,make sure mplab sim is active, click view toolbars then uncheck then check DEBUG voila.....should show up!! Then just lock them back in mplab. I know this may sound silly and i feel quite a clut, the buttons were hiding under my taskbar but even though i uninstalled the application twice making sure there were no traces of mplab, when reinstalled gave me the same symptoms?????????????????? ........silly me.
Thankyou breyno for your ideas