Just guessing but I think you have to have a graphics card capable to do that stuff. You can google specs necessary for it to work (gpu mem, etc. )
If you are stuck somewhere even after rebooting and restarting program, sometimes holding down ctrl - alt - shift keys AS YOU START the program, resets you to nice fresh start. You can google that too, see if you think it might solve your particular problem.
Can we get a link to that tutorial so we can see what you're talking about?