Share your experience!
I have just upgrade my Sony Xperia S to 4.0 ICS, then i have a problem on trying to capture a picture or screen shot. Despite that i have trying to go to the Play Store and installing the apllication for screen shot. Then it does not work, with a screen message...No root ???...How to solve this problem?
Solved! Go to Solution.
Bladerunner929 is correct
Press and hold power button and volume down button exactly at the same time and hold them there until you take a screenshot
Are you using the correct method to screen to shot as it changed after the ICS install...
Press the power button and volume down at the same time 
Strange, volume up and power does it for me.
Doh! 
Bladerunner929 is correct
Press and hold power button and volume down button exactly at the same time and hold them there until you take a screenshot
i think its the "at the same time" bit that confused me
I've been trying "hold vol down key down and press and hold Power"
awkward due to the proximity on this phone of the two buttons... but i've made it work now so i'm happy