kinda got a weird problem... I'm trying to install vista 64bit (2 disc version) on my I-mac 21'.... When it gets to 50% installed it pops up saying to put in the second disc but doesn't eject the first one. so what i'm wondering is this some kind of bug or is there some way to make a all-in-one disc for vista X64? I /have/ tried to use and external disc drive and that hasn't worked for the second disc.