MIP mapping and 3d sound

[The Vagrant]

hey, i'm running the demo version (i can't FIND the retail) and i'd just like to know what that mip mapping feature is for.

 

Secondly 3d sound won't work, music voices and stuff works fine but i get no sound effects (not a real problem, i can always play without 3d sound).

 

Finally, i was checking all the threads in this forum (to see if some had already posted something like this) and ALOT are with tnt2 m64 problems, i just find it weird considering i've never had a problem and i am running DX8.0a. oh well, just thought i might bring it up.