In my case, I tried about 5 times to reproduce (both in Gnome (Ubuntu 6.10) and KDE (kubuntu 6.10)) the example we have in help. That is a beginners example of a circuit with a voltage source of 1Volt and to resistances in series (one of 50 and the other of 100V). You want to find out the value in between the resistances (about 0.7Volts). You go to simulations, then drag "tabular" simulation, double clic on divider (I don't know the exact name in the english environment, as I use the spanish version), then "aply" and after half a second the whole application exits unexpectedly.
I attach the bug report ** Attachment added: "crash report in /var/crash/_usr_bin_qucs.1000.crash" http://librarian.launchpad.net/5832456/_usr_bin_qucs.1000.crash -- unexpectedly died https://launchpad.net/bugs/71410 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs