I've got V5 5500 w/ Toshiba memory and BIOS 1.06.
Is there any reason to upgrade BIOS to 1.18 (stability, speed, etc ) ?

I need to set correct timings for 1024x768@85Hz, but these (default) settings from registry:

1376,1072,1168,808,769,772,0,94500000,8500,8,23923
give me a bit jagged fonts and window borders.

I found correct settings with PowerStrip but i want to set them as default settings in registry (i don't want to load PowerStrip each time) but i dont know registry string "syntax"

Can somebody help me to convert timing values from attached screenshot to registry string ?

Don't copy this glide3x to %windir%\system, it's definitely not a good idea.
Why ? It's early beta and it's buggy like hell, for example try to run Tribes 2 with MesaFX and this DLL - lots of gfx bugs... Same UT2K3 - sky on DM-Antalus is broken, various errors with Glide64, texture bugs in Unreal. So, copy this dll to game directory instead, if all works fine - use it as this dll is faster than 30303, bugs - try to delete this glide3x.dll
and use older 30303 until bugs in 40404 will  be fixed

What is it ? Powercolor or what ?

Is there a way to run this game on Voodoo5 6000 ?