Shuddering between screens

[trip4219]

I've started noticing a very faint shuddering when going between screens. When i go between the home screen (3) and the one to the left (2) the screen seems to shudder as its slowing and also when going from screen 2 back to the home screen. This does not happen when going between the home screen and the one to the right (4). It's faint but noticeable to me and as such is starting to annoy/worry me. Is anyone else seeing this on their Xoom?