I just installed some more ram in my 27" 2012 iMac, and when I opened the little door on the back I noticed it was flecked with dust. No biggie. I had it facing screen down on my bed and grabbed the bulb duster I use for my camera and started puffing. I was a little shocked by how much dust came out of the vents on the bottom of the monitor. TONS of dust. I'm talking I had to explain to my wife why we have to wash the comforter now. I've only had this for about 8 months--is this normal? Besides blowing the dust out, is there any other method? I guess I'm going to have to add something to my computer maintenance routine.