I was using Boot Camp to repartition my hard drive when it prompted me to restart my computer by holding down the power button for "several seconds" and then clicking restart. Well, my computer shut down and when I turned it back on, my disk is partitioned all right, but I never got to install windows, so there's about 50GB I can't access! It doesn't appear as a separate disk, just as used space. I tried disk utility, but I don't really know what I'm doing and don't want to make things worse! The disk repair option is not available. Please help! I can't even go back into boot camp and restore it to one volume.