I am using SVN 3875 (24/09/2010).
Spec: Linux, Sun Java 1.6.0_20-b02 64bit, 8 GByte RAM, Core2Quad 2,66 GHz (Q9450)
Whenever I open a menu (e.g. "View") all the text in my graph moves up a few pixels. It moves down again as soon as the menu is closed. I am using xmonad as my window manager in a dual screen setup using NVIDIA TwinView.