Apparently I've accidentally reprogrammed my spacebar? As it only works when I hold one of the control buttons down. Probably an easy fix, although I can't find it on the'net.
Thanks!
Exit your script by selecting Exit from Tray Menu (the green H in Tray Icons).
Alternatively select End Process in Task Manager (right click on AutoHotkey.exe).
I'm guessing it's not an AutoHotKey issue.There is no autohotkey.exe running. Thanks for the reply.