Ubuntu Multimedia :: X-Server Works With LiveCD But Not On Installed 9.10

After a Christmas morning scramble trying to get Sims3 working for the kids, I ended up pulling an Nvidia 6200 AGP card out of a perfectly good Ubuntu box and threw it into the kids' PC. I replaced it in the Ubuntu system with an old Nvidia Geforce 2 Ti AGP. From the start I was unable to get any resolution higher than 800x600 with the GF2. Tried removing xserver-org, reinstalling, reconfiguring, etc. Installed the Nvidia legacy drivers, all no luck. Tried booting with a 9.10 live CD and it works perfectly - various resolutions, refreshes, etc. So, the card is capable. I've checked, rechecked, restored, modified xorg.conf to no success.

I'm at a text login now, startx returns (among other info) the following:
dlopen: /usr/lib/xorg/modules/drivers//nvidia_drv.so: undefined symbol: AllocateScreenPrivateIndex
(EE) Failed to load /usr/lib/xorg/modules/drivers//nvidia_drv.so
(EE) Failed to load module "nvidia" (loader failed, 7)
(EE) No drivers available
Fatal server error:
no screens found

Now, I've checked, and nvidia_drv.so is where it's supposed to be (in the drivers directory). What concerns me is the "//" in the directory path string in the (EE) above preceding the driver name - shouldn't this be a "/"? Is the command not able to find the driver correctly? Regardless, at this point my goal is simply to get the system to use whatever process the live cd is using which results in a working GUI. Don't need fancy 3d, etc, just want a working system.