Laptop screen goes black randomly
I have a Levono T400, maybe 6 years old. Win 7. Only thing I've changed for the original is the HD to an SSD. Nice laptop except it has an issue with the screen. It will randomly go black & then comes up again. Takes about 5-10 sec, total. The computer continues to function. It doesn't lose the internet connection (wireless) when this happens, it appears to be just a screen glitch. I can't say if it ONLY happens when I'm on the 'net, because that is what this computer usually does. I asked this in a Lenovo forum, and got nada. I am looking for a new one, but if I can figure this out, I'd just keep it. It does everything I need. Any thoughts? And am I using something that is telling me it is about to go belly up?