I have a 22" HD moniter with a 128MB ATI Radeon HD 2400 Pro card. I have used EnvyNG to enable the driver and my resolution is set to 1680x1050, but the video playback is still VERY pixelated and choppy, as well as still images (minus the choppiness though, of course). I have also had concerns with the sound levels. It seems as if the music and sound effects are set at almost double the volume of the the voice. I have spent the last couple of days searching through the Mint and Ubuntu forums but most people are having issues getting the setting for resolution high enough. Mine is set to a point that should be good (1680x1050) but no luck. I'd very much appreciate any help that any of you in the community would have to offer.