Blacking Out

So I’m new to Blender. I am going through the tutorial “Blender-3D Noob to Pro”. Im not that far into it but the problem i am running into is the workspace like to black out on me in Edit Mode when I use this command that command or click. Its rather frustrating. Any suggestions?

Thank you

?? I don’t understand what you’re doing when the screen turns black. Please give more information.

When the ‘Occlude Background geometry’ button is toggled on. The workspace blacks out.

Which version of Blender are you using? What type of video card is in your computer?