Was out on the water, motor (1998 200hp Mariner) was running great all morning. At one point I went to move, I started the outboard up and went to put it in forward and nothing….the motor just revved. I put it in TO reverse and reverse works fine. I pulled off the cowling and noticed that when I put it in forward the control arm on the outboard does not move, it only moves when I put it in reverse. This is where IT really gets strange…..now even when I put it in to forward gear it goes in to reverse, even in neutral its in reverse. The prop is not spinning freely by hand, its locked as if it is in gear. Could this be one of the cables? Could it be the lower unit (I hope not)? Anyone know how to check for these things? I have not hit anything with the outboard. Thanks!