Hi all, I am running an Intel G5, 10.5 iMac and am trying to upgrade to Snow Leopard. My problem is that my iMac's screen is completely disfigured from an unfortunate accident and since then I have set my display to mirror onto an external monitor. However, when I restart my Mac to install Snow Leopard via a partitioned hard drive, my external monitor seems to have defaulted into functioning as a dual monitor, not as a mirrored display. As a result I can't see what's happening during the installation process. What I need is a way for my Mac to use my external monitor as the primary display during the installation process, but I'm at a complete loss as to how to achieve this. I can see and move my mouse around if I drag it way off to the right, but I've tried blind-clicking and dragging from the opposite screen to no avail. Any help would be most appreciated. Thanks in advance!