I have a micromax canvas Hd having OS 4.2.1(jelly bean). Two days back i came across a very strange situation. My touch screen sensitivity is perfectly ok, but when i use whats app, and the touch the text field, the keyboard does not pop up. Strangely, the emo key that is shown just left to the text field, does work and i need to hit the emo icon everytime i want to text something. Also in my default music player , i am unable to seek the music forward or reverse by touching. Suprisingly, this problem does not exist for other apps like adobe reader, or any other app.My touch is perfectly ok,but it behaves strangely for whats app and music player. Really cant find any solution. PLzzz help.