Display Adapter Driver Error With Windows 7?

System Specifications:

Acer Aspire 5551
OS - Windows 7 Home Premium 64-bit
CPU - 2.1GHz Triple-core AMD Phenom II N830
Graphics - 256MB ATI Mobility Radeon HD4250
RAM - 4 GB DDR 3

Two days ago, my brother complained to me about his laptop, Windows seemed to have just froze, with screen tearing and weird lines all over the screen. I told him to restart his laptop. Upon restarting, the entire was black, with the windows logo stretched across the screen, all torn. But I could still hear the Windows noises it makes when it logs in, So this got me thinking, could it be an issue with his Display Driver?

I booted in Safe Mode to see if it would boot up, it works fine. No black screen, no tearing, nothing. Which makes me think that it must be a issue with his Driver. I asked him if he's made any changes recently to his drivers and he said no.

I next went into the Device Manager to find his Display Adapter, and I disabled it. I then restarted his laptop to see if it'll work, and it worked. No problem, no screen tearing, it logged him in fine. I next went about uninstalling and reinstalling his driver.

I rebooted it into Safe Mode and uninstalled his driver from the Device Manager. Then, I went about reinstalling it again, so I went to the ATI website, AMD or something I think it was called, and I had to download the AMD Vistion Engine Control Center. It found drivers for several things, including his Display Graphics. So I downloaded them, installed them. I restarted his laptop, but the same thing happened. Black Screen, screen tearing, Windows Logo stretched and torn.