I purchased a hardly used BS1400 and everything looks great. The vibration is minimal. However, I have adjusted the tension and have completed all of the adjustments to both the upper and lower blade guides (per the manual) but the saw wants to cut at an angle. I beleive the stock blade (3/8) is still on the saw. I tried making a straight cut on a 3/4 in piece of cherry and the saw pulls the piece to the left causing the cut to move to the right as I am cutting. Even with a mitre guide. Any Ideas??