WowAce

I just made a leatherworker alt, went to visit trainer for first time.  Every time you open trainer window, whole game freezes for 15seconds or so, windows pops up with game not responding close program/wait for it to respond.  Even once you open the window up, you get the freeze every time you learn a recipie off him.

This is related to the filter/list.  Setting the filter on the trainer to only show available gets rid of all the freezes.