(apologies if this doesn't go here) When I backspace to delete the last character of a Lyx document, Lyx goes away. No graceful shut down, just gone. It can be started up again fine. I am running version 1.6.5 of Lyx. My laptop is running Ubuntu 10.04 ... 64 bit.
I've had some problems with spellcheck. However, this bug happens independent of whether I've run spell check or not. -- Chapak Patrick Smith