Turbotax Premier (CD version) is very slow!!!!

Turbotax Premier CD version (fully updated) is much slower this year. Dropdown menus take a noticeable time to populate, and new fields are slowly created as if I was using an online form (my internet is very slow). In previous years, Turbotax was relatively snappy. Also, whenever I quit the program, I cannot restart it until I reboot. I'm getting an error that Turbotax is already running, which I've never seen before.  This year's edition is a big step down from the past 30+ years.  Is anyone else having to reboot constantly?

Dennis