grub enable/disable nvidia driver

[Dj YB]

Hello,

I have a problem, I have recently installed Fedora 14 on USB flash drive.
my hope PC has nvidia card so I have installed the nvidia propietary drivers 
provided by rpmfusion, later I loaded the system on a friend PC which does not 
have nvidia card and had to erase the nvidia drivers.
and so I have wondered if there is a way to write something in the grub kernel 
line to choose between nvidia or not nvidia drivers usage.

Thanks in advance,
YB.