New laptop, screen corruption starting windows

[cmf21]

Neighbor bought a new laptop this week from BestBuy. A Toshiba Satellite L645D-S4030. She wanted the garbage that BestBuy installed removed and some files, etc installed off her old computer. I ended up reinstalling windows 7 and her files. Everything works fine but when you start the laptop and it's loading windows, the screen goes crazy and has horizontal lines that flash across the screen. I didn't notice the problem when she gave me the computer so I tried installing the latest Ati 4250 drivers but the problem still exist. I uninstall the drivers, has same problem so I formated the computer again but still have the same problem.

Any ideas? I feel bad giving her laptop back but everything else seems to work just fine.

 

[VirtualLarry]

I've had that problem on two different Windows 7 HP 64-bit laptops. It appears to be a bug in win7 or perhaps the video drivers. It only happens on the startup screen for windows, correct?

 

[cmf21]

yes. just on the startup screen after the starting windows message goes away

 

[CurseTheSky]

Make sure to install the latest graphics card drives from Toshiba, not from AMD / ATi. Some vendors (ASUS in particular, in my experiences) have one or two drivers that work, and the latest and greatest cause artifacts and other problems.