Honcho

Hey guys, dont know if this has been posted already, I just downloaded the Beta version of Tiberiun sun as it reccomended I did that as im on windows 8. The game loads up much faster than the origin version and plays much smoother, but if i pause the game/press options or esc mid mission, thats it, I can't do anything and have to close the game using task manager. Is there anything I have missed or is this just an issue with Windows 8? Thanks guys CMDR A_Honcho