[BrianG]

Hmm, puzzling. I know the Quarks are not the easiest things in the world to program, but this is a bit odd.

I assume you are following these instructions:

1. Turn ON the Transmitter
   
   
2. Press and hold the Quark program button and then turn ON the external power switch on Quark.
   
   
3. Release the Quark program button approximately 2-3 seconds later.
   
   
4. Move the throttle stick until you hear a recognition beep. The red LED will blink once at this time.
   
   
5. Move the throttle stick to the desired Neutral Throttle Position and press the Quark program button and release. You will hear another recognition beep
   signaling that the Neutral position has been saved.
   
   
6. Move the throttle stick until you will hear a recognition beep. The red LED light will blink twice at this time.
   
   
7. Move the throttle stick to the desired Maximum/Full Throttle Position and press the Quark program button and release.
   
   
8. You will hear two recognition beeps signaling that the Maximum/Full Throttle Position has been saved
   
   
9. Turn OFF the external Quark power switch.
   Note: If you have correctly followed the steps above and are unsuccessful at properly programming the Neutral and Full Throttle Settings, please reverse the Throttle Channel on the transmitter.

From the sounds of things, it sounds like you aren't getting past step 4. REALLY dumb question, but you have the ESC plugged into CH2 on the receiver right?

Have you watched the videos that Quark has on programming?
Basic Programming
Advanced Programming