If you use an horizontal scroll wheel on the bottom tabs, the client will crash. You can try this with remapping your mouse's buttons in xorg.conf : Section "InputClass" Identifier "Mouse Remap" Option "ButtonMapping" "1 2 3 7 6" EndSection is an example. Reproducible: Always Steps to Reproduce: 1.Find a mouse with an horizontal scroll wheel, or use the button remapping as above 2.Open Konversation, connect to a server 3.Use the scroll wheel on the bottom tabs Actual Results: Konversation crashes. Expected Results: It should do nothing, or cycle trough the tabs, or make the tabs go left or right if many are open
*** This bug has been marked as a duplicate of bug 314082 ***