I plug my Virus into a power supply just like all the gear in my studio. When I'm not using it, it's in standby/sleep mode. When I shut the studio down for the day I switch off the power supply racks so nothing is on at all. Then when I come in the next day and switch the power supply back on, the Virus is emanating some kind of noise. I can tell because the meters on my board are moving. To cure it I have to physically unplug the Virus and plug it back in for it to go back to normal.
What's going on?