I can't this out!
I have been working in Illustrator and all of a sudden I cannot use the paint brush tool. When I go to use the paint brush I get a circle with a line drawn through it. The problem is on a picture drawn on (so far) five layers. The fifth layer will let me use the pen but not the paint brush. I need to have .5 dots to do what needs to be done. I thought I had used something to caused the error so I threw out the layer and put in a new one - the problem persisted. I have used the pencil on other layers. I that what is causing this?