I don't know why, but I've already had two brand new level 4 bootcamp cards by Jillian Michaels and both have had major technical gliches 20 to 30 minutes into a 45 minute total workout. So instead of working out for 45 minutes, It's done by 20. I am now trading those in for level 3 in hopes that it's the cards that are the problem and not my machine. I just bought the machine (treadmill) from Norditrack which was the incline trainer sponsered by Jillian Michaels herself.
Fair Oaks, CA