Hi all , i got Wow tbc running in opengl mode on a comp with a old voodoo3 and win 98. using mesa 6.2 and amigamerlin. and best of all its playable the only significant bug is that the actionbar buttons downt have anny textures.(the actionbars where fixed using software rescaling some items(in the bags or actionbars) will get disstorded textures when using this metod) but thats it , The minimap can act up some times but its just to close it and its gone. its running on a 1.7 ghz athlon with 512mb ram,. getting around 15 fps after some tweaks. but keep detail bias -2 for good looking grafics.
(https://www.3dfxzone.it/public/uploaded/voodoo3user999/200867122512_111.jpg)