I am running Parallels on a Macbook Pro, and I am using Vista. My virtual machine (Parallels hdd file, about 115GB) contains two primary partitions, which I want to keep, and 25GB of "unallocated" disk space which I want to delete in order to reduce the size of my virtual machine. I have run compressor -- takes about 35(!) hours -- with no effect. -- WHAT CAN I DO????