Hey Dan,
Thanks for contacting Answer Army. It seems that your friction drive wheel may have become delaminated. This repair should be covered by your warranty and I recommend that you contact your local servicing dealer soon. They will be able to look at the unit for us and determine in greater detail the problem. Please see the below link for the dealer locator and thank you again for contacting us at Answer Army.
Hey Dan,
Thanks for contacting Answer Army. It seems that your friction drive wheel may have become delaminated. This repair should be covered by your warranty and I recommend that you contact your local servicing dealer soon. They will be able to look at the unit for us and determine in greater detail the problem. Please see the below link for the dealer locator and thank you again for contacting us at Answer Army.
http://www.poulan.com/node7923.aspx