ps7 orginal brushes problem

[One Down]

Im having a problem with the ps7 orginal brushes, they seem to automaticly change shape and function(the brushes gets awfull soft),
Im not changing any settings or changing the brush basestyle(airbrush,paintbrush...)
I cant seem to understand whats happening and I cant change the brushes back to original shapes.
I wonder if anyone know whats happening, maybe a bug?
Im using a wacom.

anyway this is what the brushes looks like after they get changed
http://img499.imageshack.us/img499/8853/brushproblejm8df.jpg (http://imageshack.us)

[quickreaver]

Yeah, that happens to me too, once in a while. I close, wait a few moments, and restart PS. It doesn't happen often, though...no idea why.

[Datameister]

I don't see what the problem is. Which brushes are incorrect, and what's wrong with them?