My AppRadio2 + iPhone 4S has been really stable for a while until iOS6 came out. It's still stable (i.e. usable), but the screen image shrinks at random times now. It had done this in the past, but very infrequently. Now it seems to happen every time I drive.

I get this with the App Mode home screen as well as any App I use. It may start out filling the screen, but at random times the image will shrink, leaving a black frame around the shrunken image. 

Does anybody know what causes this? Is there a solution or do we just wait for another update? I've seen this phenomenon mentioned here before but would like to see if anybody can provide some useful information about it. Thanks.

I notice mine does this when I get a text I think if you turn notification center off for text messages it might fix the problem....

I don't have text messaging in notification centre turned on and my screen randomly shrinks usually when using videos