"Serious problem!! But resolved."
Meyer A. Rothberg
The "bar adjust locking knob" won't move. I spent 38 min on phone waiting for Black & Decker support to answer until I hung up. That alone should discourage you from buying this product.
Update: I finally got thru and got the help I needed. Also their response was to acknowledge my difficulty and send a gift/second battery as compensation. So, I am satisfied and the saw works well.