After experimenting with FC3 on an old laptop, I decided I was ready to make the switch on my main desktop machine. I've gotten everything more or less setup, but I'm still having problems running X, as follows:
My system freezes occasionally, when I do things like log out of a Gnome or KDE session, exit Tux Racer, or try to switch from the graphical terminal, to a TTY login, like with Ctrl-Alt-Fn. The system doesn't always do this, but it happens much more frequently than I'd think is normal. When it freezes, I lose all control of the system (i.e., can't Ctrl-Alt-Fn to a text-only environment, power button on the machine doesn't work), and I'm forced to pull the plug. On rebooting, the problem gets a bit more interesting.
I start to boot, and after the hardware initialization part of the startup process, I get stuck at a white screen, where I'm again forced to yank the plug. I start up again, and I make it all the way to the graphical startup, with the little computer image, and the progress bar and all. The graphical startup then cuts out to the 'Your system has been shut down uncleanly' thing, after which the system again freezes. This time, rather than a white screen, it's black, but I'm still unable to do anything. Third time seems to be the charm; when I pull the plug and start back up, and I'm able to log in and go about my computing, until the next time the system crashes, and I have to repeat the whole process.
Other than this issue (issues?), the system seems to be running quite well, but I'd really like not to have so many crashes, or to have to reboot three times before I can log back in. Can anyone point me in the right direction on figuring out what's wrong and how to right it? Thanks!