Yes I have tried setting the aspect ratio manually but the picture didn't change.
The solution was to uncheck the 3D checkbox in channel properties.
Thanks

Hello!

I've got a problem with a single HD channel. When switching to this channel the aspect ratio of the picture and even of the OSD is wrong. When starting ProgDVB with this channel selected, everything is fine. But when I switch to another channel and then back, the the picture is distorted ...