Hey,
I've found this minor bug on my lumia 800 that makes the screen randomly shift to the left or the right by about 50%. It happens system wide and I do not know what triggers it but it only takes a second for it to shift back.
Onthers have probably also experienced this from time to time
I've contacted a Microsoft Windows Phone Software Development Engineer who told me this is simple to solve by updating the display driver on the device.
Could this be sent over to the people responsible for the phone's developement? 
Greetings