Hello all, I have an iMac that seems to run flawlessly unless I open iTunes. It is extremely slow and freezes everything on the computer. If I close iTunes via the activity monitor, the system snaps right back into action. I've browsed many solutions and none work for me. (disabling genius, resetting pram or whatever it's called). iTunes is 11.0.4. I'm at a loss on what to do to fix this.