Having a few issues

[sok98]

odds are you downloaded it from dolphins main page which isnt the latest build, get it from here:

Code:

http://forums.dolphin-emu.org/thread-2332.html

also if its looking pixelated you should try increasing the resolution in graphic settings, and uncheck "Native" or "2x"

as far as sound goes, go to DSP settings, make sure youre using the DSP-HLE plugin and make sure "Enable HLE Audio" is checked and the volume is up