Problem: brush tool points turns to lines randomly
I keep having this frsutrating problem with the brush tool and the eraser tool. After a few minites of painting the brush tool suddenly starts to make lines. The only way i cna find to solve it temporarliy is to open a new files save it and start painting again. it doesnt' sem to matter waht brush I am using , it suddenly turns to lines. I have tried resetting the the beush tool throuwing ou the preferences but the problem returns. Can anyone help? I'm pulling my hair out!