$h! , this thread looks almost abandoned
I have been dealing with this problem (or at least similar ones) for over 2 years. Iam surprised that this hasent already been widely dealt with and answered in all that time - at least not that I know of.
Anyway, at one point I found out that parallel's virtual disk expands and even after light use, could go from 3gb to 10 or 20gb

(WTF?) Anyhow that has been dealt with.
But still if I add things up I can find 30, 80, or 100Gb just unaccounted for?!?!?
I few months ago I just threw a 500GB drive in and thought that it would take my mind off it for a while, and it has - but now its full again, so....
I know turning my mac all the way off (i.e not sleeping) will usuall retrieve a few GB, maybe 5, 10, 15, or so. But that is not the same thing as the remaining 100 or so still unaccounted for.
I hope someone gets to the bottom of this soon
