Thanks Ed. I was having this trouble before I took it home, and replaced the linner when I got it home, no change. I have a .035 tip on it, and I am running .030 wire. Yesterday I cranked down on the roller, no change. Tomorrow i'll try backing it off. When i'm running .025 wire, I've always left the roller fairly loose because if I stick at the tip it won't ball up at the rollers.
Hope backing it off works, somewhat doubtful though. Thanks Ed, i'll post changes tomorrow.