I picked up an open box 1.83 macbook pro from an apple reseller. I tried it out in the store checked for any pixel or other issues saw none so I got it. I saved a few hundred because the box had been open. I have had it for a week heat seems to be hot but undercontrol. It is running at 22 degrees c. I have seen it at 40. The only issue is the whine. It is very faint and quit. I can't hear it now but have heard it before in a quiet room. I downloaded quietMBP and set at 40 the whine is gone. The questions is should I take it back due to the whine issue. Is the whine issue a major problem that will damge the machine and cause a service call. I can live with the whine but don't want it to develop into a more serious problem. Any advice.