table turning backwards

Okay, so I am probably an idiot and this is a very easy question to answer I suppose. However, I will ask it anyways. Recently my table, a mmf 2.2, started rotating the platter the wrong way occasionally. I would turn it off and re-start it. Usually that would fix the problem. Now it won't rotate correctly, in that it will only rotate to read the record backwards. I am not aware of any switch that I hit. Does any one have any answers for me.

thanks ash