Matrox G550 not supported

["d.navarro" <d.navarro@mail.dou.dk>]

Hi,

I am a newbie in Debian, I used to use redhat before, meaning that I don't 
have any experience with .deb, and now I wanted to try  the current potato 
dist, but I have a problem with graphic card (it is a new one, Matrox G550) 
and the current xfree86 version of the official potato distribution doesn't 
support it. In the redhat distribution I used xfree version 4.0.1 and it 
worked but now I wanted to install the current test version in debian of the 
xfree with apt-get but I didn't find how to install test packages. I also 
tried dpkg but it didn't install it cleanly. Could anyone give me a suggestion 
to solve this problem, please? I don't want to come back to RH because of the 
card!

Thank you