I keep losing the lock to the screen on my computer. I have to re-click the mouse to reestablish my connection. This happens when I am scrolling, or typing. It also happens when I am playing games, like Hearts. I have to click on a card twice. Sometimes it only takes a few seconds before I have to click again. It happened three times while I was typing this message. Any ideas? The blinking vertical line that mark the placement of my cursor disappears from the page when this happens, and I have to click my mouse to make it reappear.
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