You'll find detailed info on submitting bug reports there.
If you can't do that, send details to the LyX Developers mailing
- list, or use the LyX bug tracker at http://lyxbugs.sf.net/.
+ list, or use the LyX bug tracker at http://bugzilla.lyx.org/.
Don't forget to mention which version you are having problems with!
How can I participate in the development of LyX?