Assuming the player is mounted properly in your average car (i.e., the player is angled slightly upward towards the driver), you should not have the corner cut off. Your display may be mounted unnaturally high.

It is possible to re-adjust the display position, but only under direct instructions from tech support. Essentially, you bend the pins it's mounted on by pushing on the display. The VFD is very fragile and you could break it this way, so don't do it unless you're sure it's OK with support. Call them about it and see what they say.