DRI support in xfree4.1 on blue&white g3(r128)

Hi all, I've installed the new xfree4.1 on a b/w g3, everything works fine, but when you start any app which requires openGL, it will hang imediately. When I disable DRI, everything works fine, also DRI works in 16bit mode, which I unfortunately can't use because of colormap problems(weird colors). I'm doing this on a Suse6.4 System with the BETA 2.4.6 kernel from ftp.suse.com. BTW: on a G4(identical setup) everything works as expected. My questions are: - is there a way to enable DRI in 24/32 bpp mode - or otherwise, is there a way to fix that 16bpp problem. I would be thankful for any hints or suggestions you may have. regards, Sebastian