Thanks for the warm welcome. After reading all the advice I could, I decided to wait until warmer weather to replace the portlights. Apparently, thermal expansion is an issue. It sealled with duct tape for now.
I look forward to participating with this group. I'm back into sailing after a number of years. This is a new boat for me and in a new part of the country.
I've got a lot to learn, but I'm eager to get started.