Just wanted to warn anyone or any CrossFit affiliates that purchased Concept 2 Rowers from Sept. 2006 to April 2007 to check the center metal frame unit for any cracks or wear and tear. These models have a metal defect and will break near the foot plate. Mine just broke today and I called Conept 2 to have a new unit shipped out to me for FREE. Check you serial number on the bottom of the machine. The first 6 digits is the date the model was produced. If it starts with 090106 - 040107 you should contact Concept 2 for a new unit.
Here are the pictures of the damage and what to look for: