[S.u.S.E. Linux] cannot get more than 8bpp

I just installed suse 5.1, and cannot seem to be able to get anything more than 8 bpp at any resolution. My hardware definitley should support 24 bpp at 800x600. I have a hercules dynamite power with 2MB which is supported directly from the setup. When I issue the command "startx -- -bpp 16" or "startx -- -bpp 24" I get screen garbage, and my system is then completly locked-up. 1024x768 at 8bpp works great. I have tried using the W32 driver as well as the suse_tseng driver with similar results. What am I missing? Thanks. -- To get out of this list, please send email to majordomo@suse.com with this text in its body: unsubscribe suse-linux-e