thanks. i think I might try removing the shade altogether and replace it with a tablecloth cut to size. I'm afraid putting flannel on the existing shade will cause it to be too thick when it's rolled up.
At any rate the lady at home depot didn't cut my shade the right size so I have to have it recut. Argh. I told her the size I needed but she didn't know how much clearance is required. No one in the entire store did. How do stores like that stay in business?