Please do try to uninstall/reinstall the latest graphics driver of your PC.
- Go to Device Manager and uninstall AMD graphics driver.
- Open Programs and Features and uninstall anything related to AMD.
- Next is to download and install the latest graphics driver.
- Here's the link: http://support.amd.com/en-us/download
- Once installed reboot your PC for all the changes to take effect.
- After the reboot do run Windows Update as well and install all available update.
- Once done do test your PC again and observe if the same problem will persist or not.