I am noticing a bizarre twist in this situation.
It seems, when I enter the correct Username/Password that I have on file and try to login the screen does NOT display the red “Error” box saying “ERROR: Invalid username. Lost your password?”. It just reloads the login screen and says nothing.
When I enter a completely wrong Username/Password the login prompt does that cool little “jiggle” and the red error box appears above it.
So somehow WordPress is detecting the difference between the valid and invalid login but I still don’t get access to the /wp-admin/ to manage my blog.