Solve : no sound with video's?

1.	Solve : no sound with video's?
Answer» What WOULD cause my video's to not have sound. It only happens once in awhile.The video's run good. Without more detail, I can only y guess. You have installed more that ONE Media Player and they do not AGREE on who is in charge.How do I check to SEE which or if I have more than one media on. Auto player is where the setting is ,right? I set the autoplayer for real player for audio ,would that be a good CHOICE being I have it in my add & remove?

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