Mario Party 1 Strange Graphical Errors

I was wondering if someone could help me.
I'm having somd weird problems with "Mario Party". Every couple turns, the graphics change and it looks pretty bad. Things like the tiles on the board either dissappear or change appearance, players lose there bodies, Bowser goes wireframe, etc. Occasionally, these things fix themselves after a certain minigame is played but it's still annoying. It doesn't affect the gameplay in any way, but it's still unpleasant.
So, has anyone experienced this? Does anyone know if I should try another graphics plugin?
I'm using Project64 as my emulator, with the default plugin. I also have a Geforce 2 TI graphics card.
Any help or suggestions would be greatly appreciated.

I checked things out with GoodN64 like you suggested and I'm guessing it got messed up when I renamed it. I didn't know that could mess things up. Thanks for the help.

Oh ok. I didn't think that made much sense, but I'm somewhat new to this. So, glide64 is the name of an emulator? I'll have to track it down and give it a try.

Well, after a bit of research I've learned that Glide64 is a graphics plugin. Well, I can't use this one, because it's meant for 32fx voodoo cards. I'm using a Geforce 2 TI card, so I don't think this will help. Can someone suggest another good plugin?

Ok, I downloaded all the things I needed this time, and glide works perfectly. Games run smoother now, (I tested a few) the odd graphical problems are gone and I'm a happy man. Thank you for your help everyone, I really appreciate it.