You don't say what the problem is, but I'll assume it's 3D clients not working, which is an xlibmesa3-gl bug submitted too many times already. It's probably related to gcc 3.x and thus will happen with any Radeon card at least.
BTW, can someone try the various MESA_NO_SSE, MESA_NO_3DNOW and what not environment variables to see if they make a difference? -- Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer XFree86 and DRI project member / CS student, Free Software enthusiast
