Audio/Video Sync Issues - Please Help

Over the past few weeks, I’ve noticed that videos on YouTube and hulu no longer sync properly to audio. I’m not sure why that is. I just upgraded to the latest Adobe Flash Player, and my system is effectively up-to-date. The problem does not appear to apply on Netflix.

My computer, which was purchased in 2009, is just passing the three-year mark, but it’s still quite fast. I upgraded to a cutting-edge graphics card earlier this year, and games like Battlefield 3 play smoothly at the highest settings.

Any suggestions?

Does it happen in other browsers?

What browser? This wasn’t mentioned.

Sorry! It’s been happening in Firefox. I don’t have any others.

Give it a shot in IE.