Ooops. Of course I mean jpg. Sorry for that.

Intermittent behaviour means for me, that when the error occurs covers with dark areas show the error and in screensaver mode (showing the centered cover art) the dark area around the cover shows the error. During this period it makes no difference what kind of album is played. The screensaver (in minimum) shows the lines.

When the problem "gets solved" (temporarily) there is no problem with the screen. I can play albums with dark covers without problems and also the screensaver shows the correct simply "black" screen around the cover art in the middle of the screen.

Did your question go into this direction?

ML Expression 13A, AVM Ovation SA8.2, Sooloos C15, 818v3