I have the new, 2011 15" MBP 2.2ghz model. It is just over one month old. Lately, when not doing anything CPU-intensive, the fan runs pretty loud. I checked Activity Monitor to see if anything is hogging my CPU. System CPU usage ranges from 2-4%. User CPU usage ranges from 4-8%. The CPU is almost always more than 90% idle. I do use most of my memory (4GB) but I am upgrading to 8GB in a few days. Either way, that shouldn't have much affect on the fan, right? Also, when watching flash video, I either need to use headphones or turn the volume up significantly to hear the audio. Is this normal? If not, what can I do to fix the problem?