Seat adjustment problem
 

Today when I was trying to move my seat-back forward and the whole seat forward I noticed a weird issue with the driver's side seat adjustment. When you push any of the seat adjustments it moves the seat a very small amount, then stops. To get the seat to move forward you have to keep pushing the adjustment over and over so it can make these little micro adjustments. My passenger seat seems to move normally. When I push the adjustment it moves continuously until I let it go. Any ideas what is going on here? Does it with the engine on or off.

Anything jammed under the seat runners?

No I don't see anythign under the seat or anything. Its really weird.