I am using Andengine and when I start the examples there are black borders on left and right of the screen. Like this:
10000001 10000001 10000001
where 1 is black and 0 is not black. On my phone (Google Nexus 4) it is always. In emulator sometimes. it is in all examples from here: https://github.com/nicolasgramlich/AndEngineExamples
What is causing this?