I used Ubuntu for a while but now switched back to Windows. I got a new laptop and it seems that the graphic card just don't work well with it. Painful lags and wavy lines while watching streaming videos. I installed the AMD proprietary driver but it didn't solved the problem. That's unfortunate because I think Ubuntu is a nice OS with lots of potentials.
Back to Windows now and experiencing no such problem..
Welcome to Linux, it is very rewarding albeit challenging! It's nice to hear that more and more people are joining open source world.