same problem here... emulator hangs every second but sound is pretty good... games are totally unplayable! after uncommenting new_frame() and new_vi() mupen is now VERY slow (3-5FPS). same problem with conguitos solution. i was really happy when i seen that u released a new version of mupen yesterday but i was very frustrated while testing some games. i hope u fix this problem in next release! maybe u release mupen64-0.3b for linux users in the next time?

*hope*
ah... rices plugin does NOT work for me.. here is the error output.
Initializing OpenGL Device Context
(II) Initializing SDL video subsystem...
(II) Getting video info...
(II) Setting video mode 640x480...
NVIDIA Corporation - GeForce2 GTS/AGP/3DNOW! : 1.4.0 NVIDIA 43.63
demarrage r4300
interprétation
Signal number 4 caught:
errno = 0 (Success)
Xlib: unexpected async reply (sequence 0xc147)!
hope a fixed release will be out soon
My System:
Gentoo Linux 1.4
CPU: AthlonXP 1700+
GPU: GeForce2 GTS 32MB
RAM: 256DDR 333MHz
Kernel: gaming-sources-2.4.20-r3
XFree: xfree-4.3.0-r2
Plugins: glN64-0.4.1 & mupens audio
hope this information is enough.