Yikes!  I had that happen to me with Paint Shop Pro!  All of my brushes and masks just vanished into thin air and I was no where near the folders they were in.   I don't know the answer to a fix though :(

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi