Version: 1.3.92 (using KDE 3.2.3, compiled sources) Compiler: gcc version 3.3.3 OS: Linux (i?86) release 2.2.14-5.0 If you create a sequence diagram with two classes and begin to draw a message, but you want to cancel your action by pressing escape before clicking in the destination class, half the message line will remain drawn on the screen until you change the mouse tool by clicking on the toolbar buttons.
*** Bug 102584 has been marked as a duplicate of this bug. ***
It has been fixed on the KDE 4 version. :-)