I connect regularly to 3 SQL 2008 R2 servers in our environment. I always use my own account and password (SQL authentication, not Integrated). I used to have those passwords saved by hitting the checkbox, so I never had to re-enter them. Since I installed the STM preview, I have to enter them every time I start up SSMS. It could be worse; at least the password is retained as long as I keep SSMS running; but why would it interfere with my saved passwords from session to session?