How to stop random brush rotation? PSP 8

Okay, I've been through the memories and haven't seen this addressed. I downloaded a bunch of image packs made in PS and imported them one by one as custom brush tips from selection. Now I have all these brushes, but when I try to use them, they rotate randomly. This is frustrating, especially for the frame brushes. I've tried unchecking load variance, but it doesn't help. Rotate is set to zero on all of them, so I'm lost as to what else to try. Has anyone else dealt with this? Thanks!