Same problem over here.
Running nVidia GeForce 9300 on an ASUS X83Vb.
Ubuntu 9.04 x64
I upgraded from 8.10 -> 9.04 and the driver installed but my X server kept crashing over & over.
I installed 9.04 fresh and got the jockey backend crash described here.
I'm going back to 8.10.
Same problem over here.
Running nVidia GeForce 9300 on an ASUS X83Vb.
Ubuntu 9.04 x64
I upgraded from 8.10 -> 9.04 and the driver installed but my X server kept crashing over & over.
I installed 9.04 fresh and got the jockey backend crash described here.
I'm going back to 8.10.