My Samsung 305t+ arrived today. I cant get over the annoying buzzing/humming sound coming from the monitor. I read this is because of the power supply built into the screen. The ACD's is external, so can you tell me if your ACD is making any noise in a quite room? I want to keep the Samsung even though colours are oversaturated and is too bright at the minimum setting, mostly because it doesn't have the shimmering effect of IPS panels. If I can't get a dead quiet 30" I'll go back to using only the MBP screen until OLEDs come out I don't know if I should swap, or get a refund and get a used ACD. Any 305t+ users with a dead quiet monitor?