This started happening a few days ago... Basically, I have about 15 gigs left on my hd. I got a message saying my startup disk was full.. checked how much room I had left and sure enough, only had about 50 mb. Then, right before my eyes, it jumped back up to 15.44 gb. Ever since, the hd space does this cycle, where it dwindles and dwindles til the point I get a message saying it's full, then back to normal. Like, this happens constantly and as you'd expect has been making other things run kinda weird. I assume that I'll have to get a new hd soon since this laptop is over two years old now... but in the mean time, anything you can think of that i can do to fix this?