Is there some switch to boot with vesa instead of detecting your video card and using "nv" for example? I have a newer mobile 8400 card and the screen just goes black when it starts the gui. I have been trying to build a rawhide dvd since F7 doesn't detect my dvd drive after the initial boot, which seems kind of odd that it boots and loads up and then ask cd/http/nfs and then can't find the dvd driver. FC6 installs but doesn't find the tg3 nic so updating turns into a problem :) For what it is worth, Debian testing network boot installs fine and it is on a 2.6.21 kernel. I have tried some boot.iso's from rawhide the past week, but they just stop on unpacking initrd.blah.