У вашего броузера проблема в совместимости с HTML5
This video presents a how to install Diablo III on Ubuntu 11.04 using Play On Linux and a custom pre-compiled version of wine 1.5.4.
Click on the link below to download the pre-compiled version of wine:
http://ubuntuone.com/0MtV8LxxhSltExh6XIDFKR
[My Computer Specs]
CPU: Core i5 650 @ 3.2GHz
Video Card: Geforce GTX 560
RAM: 8GB
[Software Specs]
Ubuntu: 11.04
NVidia Driver: 270.41.06
Window Manager: Gnome Classic
wine: custom 1.5.4