Email me (firstname.lastname@example.org) for a test case. I have three bubbles in a simple mindmap. If I ctrl-down the top bubble, the others leap insanely off-screen. Then it's nearly impossible to drag them back, because as I drag, the others recede to stay equi-distance. The bug manifests in both 0.8.1 and 0.9.0 RC6. I guess this is auto-layout screwing-up, but the bug manifests in 0.9.0RC6 whether or not auto-layout is turned on. Bug is on Windows XP SP3 and Windows Vista; haven't tested other OSs.