Back in July you posted a article on leaks and sliders which I have just dropped on in archives.
We've had both of the problems that you described on our 2006 B37. For the starbord panoramic window, our dealer took the whole window out and refitted it and so far no leaks.
For your sliders I suggest that you replace the whole set. We had the same issue and after discussing with Selden at the Paris boat show they mailed me a set. I didn't get an explication but I guess that there must be a bad batch out there as the rep on the stand didn't seem surprised and offered to send the replacement set straight away