I just purchased an Intel DG965MQ motherboard, which says on the box that it's made for the Core 2 Duo processor. I just received my Core 2 Duo processor, and the heatsink fan that came with the processor doesn't fit on the motherboard! WHY? The holes on the motherboard are for a rectangular shaped contraption, while the Core 2 Duo heatsink is square. Does anyone know why two Intel products that are SUPPOSED to be made for each other are not compatible?