Twinview in 12.04

[Jim Byrnes]

I have 12.04 up and running but the first thing I tried, setting up 
twinview, did not go well.

On 10.04 twinview worked well. I have a HP 2338h and an off brand 
(Hannspree) monitors. I could set both of them to 1980x1080 resolution. 
On 12.04 the HP works fine but the Handspree the best it will do is 
1024x768.

Googling shows others have had problems with twinview under 12.04. 
Based on what I read I've tried the nouveau drivers and the first two 
nvidia drivers on the list when you choose to install additional drivers.

Anyone have any insight on how to get twinview working on 12.04.

Thanks,  Jim