My sweetie has a three-year-old Windows 10 machine that has been behaving in a very odd manner. It runs fine after starting first time in the morning. She can access her links, her email, zoom, and play her solitaire games throughout the day. However, in the evening, after 6:00pm or so, the screen goes black when she tries to access something online, such as her email. The screen behaves normally when she accesses her solitaire games, which are not online. This has been happening every day and evening for about two weeks. Any thoughts on this behavior?