11.04 - Unity with GeForce FX 5200

I have a computer with a Nvidia GeForce FX 5200

With the nvidia binary driver (version 173) my computer wont boot. I get a white screen with random black characters on it.

With the Experimental open source 3D support everything works expect that all the icons in the dock are not shown, (the dock still works, auto hides, hover help, clicks, etc works)

How can I use Unity. (10.10 ran excellently with full compiz effects)