Maybe not reated, but it might be to do with the newicons thing.
I forget how this is done on WB 3.9. I think it's built in, but you have to enable newicons in the prefs??
Under OS 3.1, etc, the icon had both an old image and a new image. If you didn't run Newicons, you only saw the old image.
Have a look at that if copying over the disk.info doesn't work.
