I have a Mustek v520, everything works perfect, except that every 20 seconds or so there is a drastic change in the brightness level, like a lighting or something like that.
Anyone had this problem before? Do you know what I can do to solve it?
The TV works ok, I have tried with the DVD setup (brightness level, NTSC, PAL, etc) but nothing changes.
Any help would be apreciatted.