Are you sure it's not the bonnet tapes? Try Vaseline over the bulkhead and cowl tapes.
I don't think it's that Dave as the tapes were vaselined on Saturday when we were fixing the bonnet catches. I am not even convinced its the side screens. I just took the car for a spin to see if I could eliminate the noise and I discovered that when the side screens are lose I have the noise and when they are tightened to the maximum I have it. It likes a squeaking/ rattling noise. It doesn't sound healthy at all.
