My computer temp runs at 120 degrees. I used scmfancontrol but it did not lower the temp much. Can you tell me what I can do to make it work or any other suggestions to fix this would be most appreciated.

My computer temp runs at 120 degrees. I used scmfancontrol but it did not lower the temp much. Can you tell me what I can do to make it work or any other suggestions to fix this would be most appreciated.

To get rid of "pop-up ads and other crap on my computer when I am on the internet", click on Safari in the Menu bar, and select Preferences. Next select Extensions. Delete all of them. Restart Safari.
The first step in addressing the black screen is an SMC reset.
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer. 
Note: The LED on the MagSafe power adapter may change states or temporarily turn off when you reset the SMC.
Excerpt from
http://support.apple.com/kb/ht39

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