I've a social network, powered primarily through PHP/MySQL. The notifications system seems to be working most of the time but sometimes (I haven't been able to work out a pattern) it doesn't display notifications either correctly or at all. Might you be able to resolve this? For example it says 'User 1 replied to User 2's thread' even though the thread was actually User 1's and User 2 was the person replying. It's also supposed to notify (adding notifications to the database) every user who's posted inside a thread when there's a new reply to it but sometimes it doesn't work and only adds a notification for the user who authored the thread but not the others who contributed/replied to it.