hardtop wind noise

Vehicle Information: Year: 2002; Engine (type, size, modifications): 3.2L; Total Mileage: 22,700; Transmission: Manual;

I purchased a new hardtop from a dealer in another city. As soon as I drove away from the dealer, I noticed wind noise around the front left corner. The noise becomes audible at 45 mph. By comparison, the soft top does not make any noise around the front edge. I have repeatedly tried to adjust the top, using the pivot pin brackets on each side of the top, but I cannot stop the wind noise. The best I have achieved is to get noise from both front corners! The top sits a bit above the windshield frame when all latched down. Are there any other adjustment points? Is there something wrong with my top? Does Porsche have a procedure for adjusting the top? Are there specific measurements to check to ensure correct alignment? Thanks for any advice you can offer with this problem.