We have lived with this problem for years - the family call it the resident
birdlife screech!
We have just had all the rubbers and seals replaced..and the problem is almost
gone..unless the wind is strong and in a certain diredtion. Our noise was /is
located in the quarter light..and we used to open it a little. Not much help
I'm afraid...but at least your not the only one with this!
-- 
                       
**dace.ecc@argonet.co.uk**   Hal 'ECHO' Eccles - WFRP, X-files, etc...
                             '72 1303S Ragtop
                             David (bill payer)Eccles - SSVC, Volkswagens etc 
                             '67 Split; '72 Bug