Even stranger, I turn the synth on a few hours later and it works again. Strange. Lava At 08:43 PM 1/6/2002 -0800, Moho Disco wrote: >Well, osc 4 on my Mono/poly went belly up tonight. Do >you guys suppose the first step I should take is to get a >new SSM 2033, then go from there? Any suggestions >are appreciated... > >Lava