Open retroarch menu, do not go in to quick menu. (If you are in quick menu then press X and then press right for settings menu)
You should see the options for driver/video/audio/input/core etc. Go down to video and then down to rotation. You can rotate the screen till it is correct.
Rotate option has vanished in 1.7.5 version...
How to correct it?
Last edited by Mobutu16,