I'm running Windows 7 x64 and noticed I was down to the last 7 GB of storage on my 120GB app disk. I've only got about 50 GB of apps so it looked like something was amiss. I did some poking around and discovered the Users/username/AppData/Roaming folder had 41 GB of stuff in it. 36 GB is in one folder, Adobe. I have Master Collection CS5, but the program files for all of it (stored in another folder, of course) only add up to about 15 GB. I'll post over in the Adobe forums but thought I'd ask here if anybody knows what this stuff is for? Thanks.