My '00 gts does this as well. As soon as I notice it starting to ****, I depress the clutch pedal and start over again. It only happens when I'm trying to start off at a slow speed, thus releasing the clutch pedal at low rpms (@1k or lower). Maybe changing from 3.07 gears to 3.55 would help? I could use a higher rpm for take-off without having to worry about "launching" into the car in front of me. As asked before, does the '00 have cables to adjust?