Sounds like your not arching your fingers enough. That third knuckle should be bent at around a 45 degree angle. Make sure your thumb in planted in the middle of the back of the neck and your finger tips are whats hitting the notes, not the flesh like when you barre chords.
"During this line, the kid acted like he was pushing buttons on a calculator in the air. The kid played ******* air-calculator!"
Myspace