You could try the kmod-nvidia-96xx drive. Then reboot. I had a similar problem.
Your issue may be related to this issue
. If that is not helpful try compiz-fusion. You will need the community repo for that. Take a look here
You might want to install xorg-x11-drv-nvidia-96xx-libs-32bit if you plan on doing any wine gaming. Or if you keep kmod-nvidia, install xorg-x11-drv-nvidia-libs-32bit.