32-Bit Dolphin Emulator

[Mazumi]

Im actually pretty active on a different gaming forum and I just came here with a request for help that refers to the Dolphin Emulator.

So basically when I launch a Gamecube game (Ive got several, so I guess its not the games fault) it starts and the screen is completely black.
Dolphin.exe doesnt freeze. In the window description it says "Dolphin 3.0-201-dirty /JIT32 DC/ FPS: 0 VPS: 50- SPEED: 100%"

So in the last few days I tried to get the games running but no chance.
I googled everything possible, watched tons of youtube video setups etc. and of course updated all that was mentioned anywhere.

My PC: Win XP 32-Bit, 4GB RAM, ATI Radeon HD 5470

I guess somebody maybe had similar problems, so Id be glad to get some answers/additional links or so.

Thanks in advance,
Mazumi