i ran your installer for diablo3 and it installed and launched fine!
but without sound.
i checked the wine settings for d3 under the audio tab, tried all different settings, no sound when i press the "test sound" key.
i tried running winecfg from command line. it looks the same but when i press the "test sound" button, the sound works.
on some forum they talked about an emulation option but i can't see one.
i'm running a newly updated ubuntu precise with playonlinux 4.1.1.
i'm using a geforce gt520 graphics card with hdmi audio.
sound works fine otherwise in webbrowsers aplay etc.
please advise. :)