My computer shuts down completely upon watching certain video. For example, the earlier posted Tom Cotton speech. When I clicked onto it, I was able to watch essentially the introduction, then, BLANK. The thing just shuts off. FR, or stuff like my library account, or the weather forecasts, etc, are fine. But the minute I switch to a video format, or try to watch a CD...blank. It suddenly shuts down completely. Is it my system, or is there a fix that I'm unaware of? I know there are many knowledgeable herein. Thank you all in advance.