Hi, I''m using a Radeon HD 7770 on a Linux Dom0, using the closed source fglrx driver (13.1). For certain 3d games, I''m seeing this weird glitches. It feels like the alpha channel for certain textures are not working properly. Screenshots: Normal Linux: http://en.zimagez.com/zimage/screenshot-280113-185031.php Dom0: http://en.zimagez.com/zimage/screenshot-280113-211459.php The normal linux host and the dom0 are running the same system, i.e. same kernel, debian, same fglrx driver, etc. Although of course Dom0 was setup to have less memory and cpu than when running as the normal host. Mind you, this could well be an fglrx bug, and, this bug only happens with my Radeon HD 7770. I also have an HD 6770 and it does not have the same problem. But since the problem only occurs with Xen Dom0, maybe this has exposed some weird bug? And FWIW, the card under domU with VGA passthrough is fine too. Thanks. -- Regards, Howell.