Yes I have adjusted them to no avail. They have hole plugs in the doors
that when you remove them , you stick an allen key to adjust the
height. But no matter how I adfjusted them, they don't get better.
Thanks Walter. Andersen has a pretty good website. It has parts for
doors dating back to more than 30 years ago. A local Andersen dealer
has the rollers for $10 each. And they too just slip into the frame . I
pick them up later today so I'll keep you posted.