Psi

discussion: http://forum.psi-im.org/thread/4571

After start, the roster size is never exactly fitted to the number of contact list items. Most of the times the window is about 2-3 roster items longer (free space in the bottom). Sometimes the roster-window is displayed out of the screen (title bar is no longer visible because it is above the visible desktop). The problem is then temporarily solvable by resizing the window a little, or collapse and reopen a group or account item, both actions seem to trigger a correct auto-resize method. Sometimes the window will cripple itself again after some time, I think this is related to a roster refresh or a contact list item's status change.

This may be a Windows only bug.