There's a strange square around my home button in my Android display

[Deelaka Wijesooriya]

There's a strange square around my home button in my Android display. Can someone help me to remove it?

 

[B. Diddy]

Welcome to Android Central! Which device? Can you show us a screenshot? http://forums.androidcentral.com/am...ide-how-post-screenshots-android-central.html

Do you have a Bluetooth keyboard or mouse connected? Or is the phone talking back to you whenever you do something on the screen?