Today all of a sudden emails stopped coming to me with PM and with topic reply notifications. This has never happened to me before!
Did you check your preferences (under Profile)? Maybe for some reason those are both on Yes now intead of No?
My preferences have not changed. All of a sudden this morning my mailbox was filled with reply notices, including a second notification about one PM.
If you're using Hotmail or some other email provider that has recently changed their spam settings, you might check to make sure zalanthas.org is on your safe list.