[Elecraft] IMac pro RFI

[Mike Weir]

Greetings
My wife just purchased a new Imac desktop and with my KX1, K2 and K3 I am causing her screen to jump all around. She has a laptop mac along side and it is just fine as well as her Ipad. The antenna I have is a dipole in the attic and the other antenna is the High Sierra sidekick in the backyard. The output can go as low as 3 watts and it still gives her Mac grief. I have removed the mouse and keyboard and it does the same thing. I have also put clamp on chokes on the AC line. It seems that it is the Imac that is giving me the trouble as my desktop in the next bedroom has no trouble what so ever at any power I can deliver to the rigs. Any help would be appreciated. 
Mike
VE3WDM