A few days ago, my laptop started displaying a black screen on startup. LEDs were still on, fan was running normally, just no display whatsoever. After a few hard restarts, it'd gradually get further and further through booting. I.e at first it'd show nothing more than a few seconds, then it'd show the windows logo, then eventually after many restarts it'd reach the desktop screen.
I've tried hard resetting it, by removing battery/power cable and holding the power button down for 60 seconds, but that did nothing. Tried a system restore, nothing again.
Really unsure what's the problem - would love any advice. Laptop's a Compaq Presario cq61-311ax. Another thing; the laptop won't register any lights whatsoever unless the battery is connected. The battery itself lasts for about 10 minutes without a power supply.
It might be my imagination, but it seems to occur less frequently when running heavy usage software, such as games or movies. If I leave it idling on desktop, it's liable to turn 'black' without warning whenever it feels like it.
Again, any help would be greatly appreciated. Thanks for your time.