M10 is the problem I think. I did some research on this card and it seems that this card is just an Ati Mobility Radeon 9500 (source: http://ati.amd.com/developer/vendorid.html
so it shouldn't give any problems with the xorg radeon driver. You could try reading out the /var/log/Xorg.0.log. The only thing I don't really understand is when stalls. Is this after you installed the system to the harddisk and try to boot from the harddisk or is this when it tries to load the installer before you've installed the system. Or option 3 does the installer crash during installation ?