One thing that you can try is recalibrating the LCD. To do this, go to into Settings and then select the option "Sound and Display". At the bottom of the next screen you will find the option "Calibrate LCD", select this and follow the instructions.

If the problem persists after doing this, please submit a trouble ticket so that the support team can work with you to resolve the issue. This can be done through the following link:
https://www.entourageedge.com/suppor...kets&_a=submit