(adsbygoogle = window.adsbygoogle || []).push({}); i have a compaq cq61-423sa laptop and a couple of weeks ago the screen wen very very dark were i cant even see it but i plugged my laptop into a monitor and everything is working fine if i put it off and switch it back on the screen lights up for about 1 minute then goes back to black does anyone know what is wrong with it please can you help me fix it thanks.