Bug#625813: xorg: Reoccurrence with diagnostics while in the problem state

[Thomas Thorne]

Well I feel slightly foolish but plenty of searching has not provided an asnwer I am confident in yet.  
What is the cleanest way for me to update my nvidia driver to the one in testing?  At present the most clear instructions I can find are at http://wiki.debian.org/NvidiaGraphicsDrivers but that does not work for me (my system sticks with 195.36.31).  I could try and build the drivers from source but that feels like the wrong way to do things.  I did try forcing nvidia-kernel-dkms to 280.13-2 as that seemed like it should do what I wanted but the nvidia setting manager still reports me using the older version.  

I also tried http://wiki.debian.org/ModuleAssistant but that said I have the latest version too... which I do but I want the unstable version and I cannot force it.  "Apt-get -t unstable" also said that I was already up to date for which ever nvidia package I pointed it at.