I was shooting my Liberty during leagues and during one shot it sounded different, so I checked out all the likely accessories and that wasn't the problem. I looked closely at the bottom cam and found that the 2 allen screws that tighten the draw module down were both loose which caused the weird sound.
I now check them often and have not had any problems since. The Liberty is one great smooth shooting machine.

I'm not sure if the allen screws were loosened by my dealer before I bought it or if they just worked loose during shooting.

bowhuntr09, Congrats on your new Liberty, When you do begin shooting you will find out that it is even harder to quit.

Viper