A must read if you get down to tweaking your nvidia graphics card on linux. I had to get it to work in multi-mode to enable two large LCD displays I need.
Please check my Ctrl+Alt+F1 related post on how to disable Framebuffer in grub config (vga=normal). May help if you are facing framebuffer related issues.
Good luck!
See this Amp at http://amplify.com/u/a13uum
norootsquash 