Hey all, I'm starting to get a little pissed with Apple. My current setup is a SR 2.2GHz MBP, 23" Apple Cinema Display, external monitor speakers via high quality cable to an Amp, and a high quality monster cable (from headphone out on MBP) to my Amp. I'm getting a low noise hum through my speakers, as well as interference noises whilst scrolling using my wireless mighty mouse. Using a wired mighty mouse results in the same thing. It's strange. Sometimes it occurs without using the mouse. It can occur when switching between spaces too. When I disconnect the ACD, and have only the speakers connected, there is no noise. Why would my ACD be causing this to occur? In addition, I'm using the ACD as my main display and notice that remnants of a window will remain "ghosted" or "burned in" when switching between spaces. This is only temporary and the effect disappears when another window is placed on top of the desktop or the previous window. I'm getting pissed because: I have had to return two iMacs because of hairs underneath the glass panel, uneven backlighting and fan noise. My MBP has a bright white dot on it. I had 2 previous MBP's last year whose screens suffered terribly from yellowing and uneven backlighting. I had 2 MB's last year which made a similar weird hum (but no interference noises) from my speakers exactly 30 seconds after the power cable was disconnected. Meaning, while the MB was running off of the battery. This happened like clock work every time. A Dell Inspiron didn't make any noise when connected to the same setup (minus the ACD) and neither did the iMac's I have had. Can anyone shed any light on the current problem I'm having? I was considering purchasing a Mac Pro but given the quality issues I seem to have been experiencing I am reluctant to do so.