I think it has something to do with the kernel, but my wife's laptop is working fine. It took a while, several days over all but I got it working again. I ended up recompiling the kernel, and here is what I posted in the thread: http: //ubuntuforums.org/showthread.php?t=697423
It wasn't quick and easy, but I recompiled the kernel to 18.104.22.168 using KernelCheck http://kcheck.sourceforge.net/
which worked but I needed to do it several times until I learned you had to go into go into the configuration for Sound Advanced Linus System under PCI devices and select the HD Sound for the iIntel - even though I am not using the intel, in order to get the sound working.
In the process II also selected the "K7" option as I am using an AMD 64 dual core. I also needed to select memory higher than 4 gig so my full 4 gig of memory would be recognized. The first time I thought selecting 4 gig would do it, but had to go with the 64 gig - took several tries to get it all working.
The last compile I used the directions at http://ubuntuforums.org/showthread.p...=master+kernel
because I didn't need to download the source again and I didn't know how to set up kernelcheck to set up and compile without doiwnloading everything. It took a long time, several hours to recompile the kernel several times, I almost gave up and was ready to install the 64 bit version.
I needed to run envy again to reinstall my video drivers and I had to reinstall VirtualBox but it now seems to be working. I hope this helps someone else.
on edit : got "envy" at http://albertomilone.com/nvidia_scripts1.html