[math-fun] Apple bizarreness--write-once hard drive

Not exactly math-fun, but have mercy. I just had a fruitless phonechat with an Apple nonGenius. MacBook Pro freezes and requires powerbutton reboot when Virtual Box hangs well into loading XP. OK, Apple won't touch Virtual Box, but I hoped|conjectured it was just an ungraceful consequence of only 118G of unused hard drive, so I deleted many G and emptied the trash. Now there is only 117G free. While on the phone, I sacrificed an additional 2.85G Mathematica 8.0. Free shrank a little more. Anybody?? --rwg