Problems with Gauntlet 64

I dont know if anyone else has brought this up, but when I try to play Gauntlet 64 there are alot of graphical problems. When you go to the hub everything is Black, and when you get to a level the screen shrinks and areas dissapear and reappear randomly.

If there is anyway to fix this can someone let me know.

Yeah, thats what I meant. So what is a good alternate Plug In to use?