Same thing for me, all was ok with Snesgx005 or 006 but none when i've updated to 007 or 008.
Same problem with VBA GX, all was ok with 004 but no more with 005 or 006.
They don't work no more now, same problem as for Base (black screen and wiimote shut off)
=> Pal Wii with Gamma 0.3 Channel...