Hey the screen on my laptop has some issues. when i power it on, it'll be fine for a couple minutes and then the screen will go black for a minute or 2 then it'll cut back again and it keeps doing that. each time the screen goes black, it takes longer for it to come on until it just stays back. the programs and commands are working tho cause i hear them. its just the screen is acting funky. what do i do and how do i fix it?