As the title says, my computer stuck when playing HD videos from Youtube. But, the audio keep playing and when i switch back to normal mode it keeps playing. I happen to have an ATI HD5750 which was giving me a lot of troubles for the past few month with GSOD and now this. As for the driver it's cat 10.2 ver.
Thanks for the advice. It's true about that but I have figure out the solution from another forum. While playing the videos right click > setting > disable hardware acceleration. Although it's not perfect, it works for me and yes i have everything updates even bios.