I have downgraded my buddypress Install to see if thats where the problem lies, however it still persists. I am not running Buddypress 1.2.8 however the reply doesnt work.
So i presume this has to do with the WordPress aspect.
Everything works fine in the default theme however.
I am having same issues. I did not deactivate my plugins. I only switched to BuddyPress Default and everything works fine. So it is definitely an issue with the Themes not plugin conflict.