I use PS 5.5, and it won't let me save new brushes. When I click on the arrow in the bursh pallette, the 'Define Brush' option isn't click-able. I'm wondering if there's a limit to how many brushes you can have in PS. I really don't have that many but it just won't let me load or save new ones. I wouldn't be so pissed about this if I wasn't having a bad day, so any help is wonderful.

While I'm here and asking questions, I'm also going to ask how you change the size of brushes in PS. I know that you can do it in PSP, because I used to have it but I can't find the option in PS.

Thanks for any help in advance.