Friends,

I tried 2 monitors, one is a bit older and the other one is newer with auto-detect features. Same issue. I'll see if i can manually set the frequencies. I don't know if i missed it, but i can't find frequency adjustments on the A5, only setting to OFF, VGA or Mirror.
BTW, my MidJay (set to 60HZ) works flawlessly with these 2 monitors, no humming and no display issue.

Thanks for all your replies.
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Jim

SD90,Korg I3, KMA Liverpool,TC Helicon Play Electric, Fender Sonoran Guitar, vArranger, Bose S1 Pros, Bose L1 Compact, Aiwa Exos-9