Metroid 3: corruption (wii) crashes when keeping "A" button pressed to charge weapon

[ziotoo4]

As above ^_^ When the "shoot" (a) button is kept pressed, dolphin crashes (no panic handlers-just the default win "dolphin stopped functioning" alert.
I'm quite tired (about 1 AM here) and google search did not bring any good result, so...

Is it a common problem? if so, is there a fix? I'm using the pal version over rev 5989 (but later revs gave the same problems) with windows 7. A ps3 sixaxis is plugged through motioninjoy, and my laptop is a core i7, 4GBram HP pavillion.

Let me know,
and thanks in advance ^_^

Fede

[ziotoo4]

first (and last ^_^) up!
If anyone can help, thanks a lot!