hello all, i just purchased the wen 2156 from the Depot, I haven't even turned it on yet, I can adjust the angle just fine and lock the table down, but the whole angle system appears to be loose, it will wobble up and down when pushing/pulling up from a side edge, not the front edge. I loosened and re-tightened the 2 rollers in the track and the ones in the back track, they aren't moving, I took off the side panels and there's nothing in there but the long bar. any suggestions? thank you.