Am I the only one having problems with kernel 2.6.40.3-0 and/or (a)kmod-nvidia 280.13-2 in fc14 and/or fc15 ?

My Dell duo won't boot the afore mentioned kernel at all.  It fails with a kernel bug message.  It runs prior kernels just fine.

My HP laptop freezes during a graphical session login with the aforementioned kernel and nvidia module.  It did so in FC14.  I upgraded to fc15 and it does the same thing.

The same laptop runs the F15 Live iso just fine and also runs the aforementioned kernel from the cli just fine.  The problem is only when a graphical session is being used.

Is anyone else having the same problem or is it just me ?