Some livestream viewing problems

[Papapoof]

Hello, I've been having a problem viewing some streams on livestream. The thing is that the video will stop playing while the sound is still playing and then the video will skip to catch up with the stream. When this does happen it only lasts for a few seconds, and its quite annoying.

Now the thing is that this doesn't happen to every stream but when it does I'm not too sure if its me or the streamer. I have a ATI Radeon HD 5450, in case this helps. I've heard of ATI having playback problems so maybe there could be an issue with viewing livestreams as well.

Any help would be appreciated!