how can I get my NuTool 14" bandsaw, 3 wheel, model 0134A to cut straight?

I have the original 1780 mm x 3/8 blade in it, but even with the tensioner and guides fully adjusted the blade wanders and does not seem to be as taut as it should be. Would a shorter blade solve the problem?
Rowena Redhead, July 2012


done
http://www.bodyshop-tools-supplies.co.uk/index.php

Steve, July 2012
Ask Adrian Mancha

Steve Edwards, July 2012