Path Mates

I have a cam follower mounted in a cam slot using a path matebut I can not get the follower to move. I defined a path on thepart with the slot and a vertex on the follower. I mated the vertexon the path and when I use the FREE option under Path Constraint Ican not drag the part. If I select the option of Distance AlongPath it will move the defined distance.

Any suggestions on how to get it to moved freely along the path?

ThanksSolidworksAssemblies