Haven't done it but I would be EXTREMELY CAREFUL when letting any installer or copy of FDISK near my computer if it's going to start to mess about with my partition tables. Esp if its Linux modifying a Windows partition table. If it screws it up its gone. Full stop. Forever. Backup your machine to DVD or something, preferably using Norton GHOST and make a careful note of what partitions you already have. If there is unpartitioned space on your hard drive, (unlikely), then safer than if it's got to start modifying partitions.