I am having BIG problems with my ARCAM AV-888

Hi has anyone out their encountered the following problems with an ARCAM AV-888:
The unit gets stuck and the remote will not work on it at all; only until reset via the AC-line will take it out of this "freez".
I can see the menu OSD, but no video is displayed in any input .
Going into any input except the DVD inputs gets the unit into what I call "BLAK MODE";
NO PICTUR NO CONTROLL .
Is this fixable, does anyone know what's going on????