I want to install vista on my mac, but my current windows partition is only 15GB. Home Premium is a 5.5GB install. when i erase my bootcamp partition and try to reform one, i can only make a 15GB one before it tells me something is in the way to m ake it any bigger. is there a program that i can use to find what is blocking my ability to make a larger bootcamp HD? or any other option to make it bigger? I assume i cant without erasing and reinstalling everything, but if there is, info on that would be appreciated.