Please provide some information about the hard- and software used.

Box type: DM500T
GUI (enigma1/enigma2): Enigma1
Firmware version: any

your question

Does anyone heard about sound synk problem on DM500T?
It starts ok for the first minutes and after some time there is small crack in the sound and it is half a second after. After few minutes again the gap is increasing and after few hours the picture is pixellating with fex seconds interval with 4-6sec delay of the sound.
If I change the channels is OK for few minutes and then it starts again.

Any idea?

With best regards
from Iceland
oreind