+ <h2>Common Issues</h2>
+ <p>
+ If your problem isn't covered by the suggestions below, please
+ <a href="mailto:yuuSPAM@MAPSyukkurigames.com"
+ onclick="this.href=this.href.replace(/[A-Z]/g, '')"
+ >email us</a>. Include as much
+ information as you can about your computer's operating system
+ and hardware, especially its GPU.
+ </p>
+ <h3>"WebGL isn't supported" on Windows</h3>
+ <ul>
+ <li>
+ Install the
+ <a href="http://www.microsoft.com/en-us/download/details.aspx?id=35">DirectX End-User Runtime</a>
+ from Microsoft.
+ </li>
+ <li>
+ Check if <a href="http://get.webgl.org/">your regular
+ browser supports WebGL</a>. If it doesn't, try following the
+ instructions there to enable it.
+ </li>
+ </ul>
+ <h3>"WebGL isn't supported" on GNU/Linux</h3>
+ <ul>
+ <li>
+ Check if <a href="http://get.webgl.org/">your regular browser
+ supports WebGL</a>. If it doesn't, try following the
+ instructions there to enable it.
+ </li>
+ <li>
+ Most GNU/Linux distributions offer two (or more) drivers for
+ popular video cards, a free one and a proprietary one. Try
+ switching to the other one. Unfortunately, this process is
+ different between different distributions and different
+ graphics cards, so we can't describe it here. Try
+ <a href="https://help.ubuntu.com/community/VideoDriverHowto">the official documentation for video drivers on Ubuntu</a>,
+ <a href="https://wiki.ubuntu.com/Valve">Valve's guide to video drivers on Ubuntu</a>,
+ or <a href="http://rpmfusion.org/Howto/nVidia">RPMFusion's guide to NVIDIA drivers on Fedora</a>.
+ </li>
+ </ul>
+ <h3 id=gatekeeper>
+ Gatekeeper / "can't be opened because it is
+ from an unidentified developer" on Mac OS X
+ </h3>
+ <p>
+ Open <strong>System Preferences</strong>,
+ pick <strong>Security & Privacy</strong> and select
+ the
+ <strong>General</strong> tab. Change the "Allow applications
+ downloaded from" selection to <strong>Anywhere</strong>.
+ (You might need to click on the lock icon and enter your
+ password first.)
+ </p>
+ <p>
+ If you're nervous about enabling programs from anywhere and
+ only want to run this one program, you can right-click (/
+ two-finger tap / control-click) on the application and choose
+ <strong>Open</strong>.
+ </p>