from the info you gave sounds like it needs a hammer
1. find nice big hammer
2. with all of thors might use hammer to hit screen
3. if screen goes blank hit harder with hammer
4. if screen ramains blank try hitting the PC tower or for lptop the keyboard
5. if still blank throw out of top floor window (works better the higher the building is)
6.cry for 30 mins
7.go to PC store buy new computer
8. if problem happens again start from step 1
hope this helps
from the limited info its the best i could do
I lol'd!
Good job taking the effort to write that