umm im not exactly sure where all to look for these screws, but i have tried to manually crank and it will not budge, it will vent but will not budge at all when trying to open the sunroof. It seems to me way more than a lube problem. Im considering just getting a new assembly from a junkyard and throwing it up there. But no i have no solution, there was to be someone else out there that has solved this issue?!!!?