I'm sorry about the issue. When the screen goes blank, then if you move the mouse again, does the screen come back fine?
Does this issue occur only when you open a browser?
If you do not open any browser or program, does this issue occur or not?
Do you have windows xp, vista, or 7, or 8, 10, or mac computer?
Can we do a remote support session, so I can troubleshoot the issue directly on your computer together with you?
Please reply at the box below. Thank you,