Glreno: I don't owe DIO but I had extensive experience with equipment where power supply is cheap junk to be plugged into wall. When music became more complex, exactly as you describe, power supply always failed. I firmly believe, this is what you have. If I would own DIO, the first thing I would build (or ask someone, say Stan Warren from Supermod to build it for me) dedicated power supply with IEC so I could use good power cord as well.
