F18: nvidia drivers - system hangs on boot

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Hi,

I have installed Fedora 18 64Bit on a laptop with NVIDIA Geforce 635M. I tried installing the Nvidia drivers as in this guide:

http://forums.fedoraforum.org/showpost.php?p=1582555

After following all steps and rebooting, the system hung on boot. I couldn't even ctrl+alt+fX, just reboot. I booted into single-user mode and saw in the xserver logs this error:

[    21.858] (II) LoadModule: "glx"
[    21.858] (II) Loading /usr/lib64/nvidia/xorg/libglx.so
[    21.866] (II) Module glx: vendor="NVIDIA Corporation"
[    21.866]     compiled for 4.0.2, module version = 1.0.0
[    21.866]    Module class: X.Org Server Extension
[    21.866] (II) NVIDIA GLX Module  304.64  Tue Oct 30 11:18:32 PDT 2012
[    21.867] Loading extension GLX
[    21.867] (II) LoadModule: "nvidia"
[    21.867] (II) Loading /usr/lib64/xorg/modules/drivers/nvidia_drv.so
[    21.867] (II) Module nvidia: vendor="NVIDIA Corporation"
[    21.867]    compiled for 4.0.2, module version = 1.0.0
[    21.867]    Module class: X.Org Video Driver
[    21.877] (EE) NVIDIA: Failed to load the NVIDIA kernel module. Please check your
[    21.877] (EE) NVIDIA:     system's kernel log for additional error messages.
[    21.877] (II) UnloadModule: "nvidia"
[    21.877] (II) Unloading nvidia
[    21.877] (EE) Failed to load module "nvidia" (module-specific error, 0)
[    21.877] (EE) No drivers available.
[    21.877] 
Fatal server error:
[    21.877] no screens found
[    21.877] (EE)

I found this thread: http://forums.fedoraforum.org/showthread.php?t=287669

But when editing the GRUB boot line, I saw that the options "rdblacklist=nouveau nouveau.modeset=0" were already there, so this is not the issue.

What else can I do?