Phoronix: Testing Out The Nouveau Driver On Fedora 11
With the forthcoming release of Fedora 11, Red Hat has made the bold (but wise) decision of replacing xf86-video-nv as the default open-source NVIDIA driver with the Nouveau driver instead. The xf86-video-nv driver is officially maintained by NVIDIA, but it's their half-assed attempt at being open-source friendly...
The proprietary Nvidia drivers always had a problem with this. If you plug in a monitor, it isn't recognized. Then, when you detect the monitor through Nvidia X Server Settings, the monitors are combined into one big screen. Maximizing a window will stretch it over all available monitors. You have to log out and restart the X server before multi-monitor works correctly.
did you try any recent yum version? speed was one of the recent focus on development. Additionally, rpm 4.7 is also bringing more speed to the transaction, so I suggest you really give a spin to F11 beta (out in two days)