Several times I have been working -- admittedly a relatively long time because I'm composing a newsletter with a week of activities. All of a sudden the screen will go dark and a message comes up asking if I want to continue but it doesn't do anything when I say I do want to continue. It's just frozen and I have to quit the message. It does save what I have, but it also creates a second, earlier version of the document. Sometimes I can click thru the screen, but I've run into the frozen screen 3-4 times. I'm not sure what's going on.
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