[allan87]

At some point - within the last month, I'd say, I have lost the black bars that should display when a video's aspect ratio does not match the screen. For instance, if I am watching a 4:3 video, I see remnants of the XBMC 'desktop' on the left and right of the video, instead of black bars. Always running a recent rbej Gotham build.

Have you set algorithmdirtyregions to 1? Leave it at 3 - there are still artefacts on 1/2.

Yup. That was it. Thanks.