I need some help tracking down a problem. I recently put a Seagate Momentus Hybrid drive in my MAC Book Pro which boosts to be twice as fast as a normal hard drive. My samples are tiggered from an external e-SATA drive connected to an express card. I am in the process of writing a symphony and using 4 instances of EWQL SO Platinum PLAY triggereing several Sting Divisi sections and Horns and Woodwinds. I have so far completed about 5 minutes of the symphony. After playback 1 or 2 times, the Fans in my MAC Book Pro begin to Scream until I hit stop and wait for them to clam down. So, I think it is a heat related issue, but I cannot tell if it is the HD or the processor. I have 6 gb RAM installed but I think I am running in 32 bit. Not sure. I have loaded the VST performance module and it barely reads 25% usage on ASIO drive and the Disk usage is at 0. The utility on my mac for processes does not reveal any over taxing of the system. Can someone please shed some light on this! Is there a setting somewhere to optimize? It worries me to hear the fan scream that high?