I Got a 13 inch MBP and gave my 13 inch aluminum MB to my dad. However i noticed something with the new MBP i got. A)After installing istat pro on both machines only the older MB shows as having Heatsink A and B, the new MBP shows as only having Heat sink B, how come? B)The aluminum MB on boot up has all the temps (CPU, Heat sinks, HD and so on) going around 20-30 degrees FH, yet the MBP is coming up with 90-130 degrees FH. After 1 hour use the MB has all reading between 28-48 yet the MBP has all readings between 90-140 degrees FH. Both kept in the same room, doing the exact same thing (running safari, same site). I just dont want the nightmare i had with the MBA where i had to return it 3 times because it would over heat and crawl when doing anything slightly intensive. Can some PLEASE just bring up their istat widget and tell me their temps. Mine are: HD MACINSTOSH 83 CPU 131 ENCLOSURE BASE 90 ENCLOSURE BASE 2 90 ENCLOSURE BASE 3 89 ENCLOSURE BASE 4 91 HEATSINK B 113 NORTHBRIDGE 108 These are the stats upon boot up.