How to switch on/off system load and running processes overlay Somehow I have managed to get my Android phone (HTC Wildfire running Cyanogenmod 7.1 / Android 2.3.7) into a state where the system load (in unix uptime format) and running process list is constantly displayed on top of the screen, no matter what is running.  How do I turn this feature off?

(For the avoidance of doubt, I think this happened while the phone was unlocked in my pocket.  I never explicitly asked for this behaviour.)
The setting you are looking for is, most likely, found in Settings &rarr; Development (might be called "Developer options"; I know on some ROMs this option is initially hidden -- but if it's hidden in your case, it would be funny how that CPU overlay was activated). Scroll down a bit there, and you should find the "Monitoring" section -- where you probably checked to "show CPU load".

 

As the screenshots show, the settings item is sometimes called "Development" and on other ROMs (here: Nexus) "Developer options". Simply check for something similar -- not sure if some manufacturer decided for a third term ;)