nevermind i figured it out, to alt tab out of mupen64 with ctrl backspace you have to disable mouse support in the input settings menu

i also discovered a work around to the SIGSEV type error:
to fix it simply load a different kernel preset from within QCPUFreq (an overclocking application) and voila mupen64 works fine, i kept getting the SIGSEV type error after upgrading to PR1.3

when i get home ill try loading the custom config from 1st page to see if i can get q and p to work again