Doplphin does not work on my PC

[telsat72]

Hello,
I own a noteboock Sony Vaio, model VGN-FE21M, with a Nvidia GeForce Go 7600 graphics card, which I put the 179.48 drivers.
I've the R3661 version of Dolphy, but all of the Wii iso load slowly and, above all, are not seen (the video flickers). I also tried leaving his old original drivers, but things changed.
How can I fix?
Thank you.