Screen Blackening
If you get the screen blacking and resetting itself, check to see if there is an update for the driver for your video card (chip, if it's on the motherboard). Also Windows 7 has some trouble shooting tools built in. For the Action Center, go to the Control Panel and find the Action Center.
A second tool can be found by either opening the Control Panel and clicking on Troubleshooting in the "All Contol Panel Items" or launch the troubleshooting platform, just go to the Start menu and type fix or troubleshoot. A wizard will launch automatically. This is what I found on my computer.
Then I clicked on the button "View Message Details"
Then follow the directions to update the driver.
