I was using my Macbook awhile ago and I got a popup message saying my startup disk is full, even though I have 84.05 gigs available. I figured it was a fluke and ignored it. A bit later, I was doing some stuff in Finder and noticed at the bottom where it says my drive's free space, it suddenly went from 84.05 GB free, to zero free, gave me the error message, and went back up to 84.05 gigs free, and it's done this a couple times...and the only thing I was doing was copying a 3 KB text file from a thumb drive. Anyone know WTF is up with that? It definitely is strange and I've never seen it before. I just ran a Verify in Disk Utility and everything checks out, no errors. Thanks in advance