Hi, first the credit: generally speaking, the forum software is brilliantly designed. I certainly preferred this software over PHPBB, Simple Machines, as well as the stillborn BBPress.

Now the single area of a (minor) problem, speaking of 4.0.4: the PM system seems underdesigned – atrophied, as though someone thought it an unimportant area, with (apparent) bugs.

Hope that may be fixed in future editions (if not already in 4.1.