hi, i hope someone can help. I just received my new mac pro (8 core, dual 2.8 ghz, early 2008) this morning, everything was fine the whole day but all of a sudden the machine has gotten very, very loud, like a vacuum cleaner. Not sure what's going on as this doesn't sound normal. like the fans are stuck or something? When I open up the case I see a fan on the graphics card spinning very fast. Could that be it? The card is also covered in plastic, am i supposed to remove that? When i sleep the machine, the sound goes away but comes back on immediately upon restart. please help someone.