Ok. I've posted this to the YDL list and to Linuxquestions but I thought I'd post it here as well. I've been trying to install YDL 3 (sirius) on my PowerTower Pro 225 but the damned thing gives an "Exception Occurred" when I select a partition utility during install (doesn't matter which one I choose). I noticed that there may be a way to drop to single user mode (via CTL+CMD+2) but that doesn't seem to be working.