I recently got a new Grizzly G0555 band saw from craigslist. It was already assembeld when I picked it up. The question that I have is concerning the fence. The rip fence seems to be installed correctly but when i move it within 7 inches of the blade, the part of the fence that rides on the front rail sits up about 1/2" higher than the table?! I know this can't be right, but how else would the tube go on the top, there are only 2 holes that the tube bolts onto. Has anyone else had this issue?