I am trying to install OS X 10.6 Server on an external HD connected to my 27-inch iMac. When I try to boot from the DVD, it takes forever to boot and then the interface is painfully slow. It looks like a slow slideshow. After a while it stops responding all together. I tried imaging the DVD onto a flash drive and booting from that, but it won't boot. It gets to the grey apple screen but stops there. Anyone else have this experience.