I make and use brushes all the time. I don't know what happened, but yesterday, my brushes are suddenly all really tiny. The preview looks normal, (you know when you hover your mouse you see the preview size) but then when I actually click the mouse, the result is super tiny - I couldn't even see them at first. And no, I'm not using a super-sized document - just same size I always use. Seems to be with all my brushes.
What's going on? Help!
Never mind. Duh. I had the pressure sensitivy on my Wacomb pen.
I know the feeling - had something similar - have you tried making brush size changes with CAPS lock on? Was driving me crazy, but the little window that told me that CAPs Lock was on was hidden by a cup on my desk (empty- no liquids near my stuff) just getting ready to trash my preferences and picked up the cup to get some coffee and bang immediately saw the problem - good news as resetting prefs is a pain