I recently upgraded to Lion and now my fan speeds won't dip under 3000RPM, I tried playing with the settings on SMC fan control, but it won't die down. My temperatures are pretty low (40s-mid50s) and I'm not taxing it out, the ambient temperature is about 70 degrees F. What gives? I know this is taking out some of my battery life. I hear doing a clean install helps. I'm also having this other problem: When I connected my MBP to my 720P HDTV last night, the video I watched on it was slightly studdery and un-smooth. The desecrate graphics were being used and I was using a MDP-HDMI dongle to connect to my HDTV. I choose mirroring of the display and then closed the lid on my MBP (sound came out from TV speakers). Can the discrete graphics not handle displaying HD video onto my TV? The output to the TV said it was 1080i (even though it's 720P) and when I changed it to 720P, the TV screen wouldn't display the monitor, so I put it back onto 1080i and had to use the overscan slider a little bit.