I have a strange problem, I just 'upgraded' (questionable) to vista home premium 64 bit. And now, whenever I launch GPO in cubase studio 4 it works fine, but as soon as I close it then try to bring it back up, it refuses to work. The kontakt screen is still there, but I can't click anything in it, with the exception of resize and close. I can still play music with the instruments I have currently in it, but no editing works! I am guessing it's a problem with VST Bridge, as kontakt works fine as a standalone out side of cubase.