This may be just the only case.. but worth mentioning since it costs me a lot of time. I installed the latest version dated Nov. 8, 2008 on Joomla 1.5.9 and CB 1.2. Everything seems fine until members started complaining about the retrieved lost password sent don't give them site access as expected. I thought it was CB at first. But after disable this plug in, CB lost password is sending out the correct password for our members again.

Must test on your site first.