Apologies for starting a new thread on this but it's really a new problem (and I was embarrassed every time I saw my misspelled "touble" in the subject line of the followups :-) Lonni Friedman writes: : The nvidia X driver will not work with the FC5 '2054' kernel, as that : kernel bans non-GPL'd symbols. I suppose that this is why, after spending a couple of hours trying to build the .rpm's, writing and reading messages to this board, and finally getting the .rpm's to build on my machine, I'm rewarded for my efforts with: rpm -ivh *.rpm Preparing... ########################################### [100%] 1:nvidia-kmod-debuginfo ########################################### [ 25%] 2:kmod-nvidia-smp ########################################### [ 50%] 3:xorg-x11-drv-nvidia ########################################### [ 75%] FATAL: Error inserting nvidia (/lib/modules/2.6.15-1.2054_FC5smp/extra/nvidia/nvidia.ko): Unknown symbol in module, or unknown parameter (see dmesg) 4:xorg-x11-drv-nvidia-dev########################################### [100%] At all events, thanks, Lonni, for preventing another few hours wasted in trying to track this one down. Questions: 1) Is this something unique to the 2.6.15_1.2054_FC5 kernel? I ask because I never saw this error when building the nvidia kernel module and X driver on older kernels (under Mandrake). 2) Is there a work-around for this kernel? Was nobody who ran the stock FC5 kernel able to run the nvidia driver until a later kernel came out? I need to remain on this kernel for a bit until I can carefully test its suspend/resume behaviour. I also need the nvidia driver to clean up several image processing issues I'm having (crucial to my work) due to running the stock nv driver. Help, as always, is appreciated. Thanks Dean