I just received a brand new DeWalt scroll saw and am very upset. The darn thing vibrates and knocks if you go over halfway on speed. If it was not bolted down it would walk across the room. Also the table still tilts a little back and forth even tho the knob is very tight Has anyone else had trouble with there DW788. Is there anyone in the Glendale,AZ area that could help me to decide to keep it or send it back. Had to wait since February to have it shipped on a slow boat from China.