The front may not be seated from the top having been installed incorrectly. The top should be placed into position and the front latches fully clamped down first, then the rear bolts are installed and tightened. If the rear bolts are installed and tightened first, the top may not seal correctly over the windshield. If you undo the top to reseat it over the windshield, make sure to lift it up a tad off the rear so it can pull itself into position as the front clamps are clamped.
If that doesn't do it, a new seal is indicated.