thanks snibs , that made life a bit easier .
greg ,
I tried , everything you said , this time I soaked the nozzles in X20A thinner and really cleaned the brushes , I also very gently ran the needle point's over 2000 grit paper , and I also added a few drops of tamiya acrylic paint retarder , for the dry tip , I have my airbrush again , thank's for the help , it seem's I wasn't very good at cleaning,
steve