I will come back to my computer after being away, and see that I can't use Lotus Notes until I input my password again. I can't cancel out of it, or click on any window behind the password prompt until I have input it. My Sametime Status is "Do Not Disturb" until I enter the password and then it returns to 'Available'. The status is real -- I have had comments from others who notice my status.
This problem went away last time I changed my password two weeks ago, or so. Then last night it started again.