Hi I recently purchased a 27" C2D 4gb ram imac, I was using it about 4 hours Quark X Press, then I ran Windows XP to play Street Fighter 4 with my brother, after an hour of playing I have put my hand on the back (CPU), the bottom was just fine (cold) but when I shifted my hand to the top of the monitor it was very hot (pretty the same when you have a hot cup of coffe and you touch the glass (obviously, the out side). Is it normal? I had a problem with my previous imac G5 PPC in which the capacitors were inflated, causing its decease. Should I keep an eye to it? 