Fedora Installation :: Upgraded To FC10 - Video - Fatal Server Error: No Screens Found Gotta Go, X Session Getting Corrupt

I must say, the RPMfusion version of the Nvdia driver package work better with FC10 than they did under FC9 for me, which is to say: they work at all. Still get corrupted output after a few hours of work, but I imagine that's just the underlying weakness of the Nvidia driver bubbling up. Either way, now I have other problems:

First off, the Intel driver for my onboard video setup has stopped working entirely. The attempt to bring up X on the Intel setup gets me to the KDE login screen and locks the machine up hard (poweroff required). A look at the xorg.0.log shows that the server seems to be stuck in a loop trying to determine the valid video properties for the session.

Here's my xorg.conf, BTW. I have it setup to perform different configurations depending on which DefaultServerLayout line gets uncommented (lines 4 - 6). If anybody has a better way of doing this, I'm all ears. While we're on my xorg.conf, pleas view lines 64-67 and/or 75-77. This is my quickie way of changing drivers (again, all ears) which brings us to the next problem, neither the nv or nouveau drivers work with my system. Interestingly enough, both drivers tend to fail in the same relative spot in the process, I think. Please refer to line 207 of this xorg.0.log with the nv driver or line 140 of this xorg.0.log from the nouveau setup. Either way, both sessions die with the same message: (EE) Screen(s) found, but none have a usable configuration. Fatal server error: no screens found Gotta go, x session getting corrupt,,,