Hi,
Thank you for sharing your query on Microsoft Community.
I would like you to follow the methods given to fix the issue:
Method 1: Download the latest drivers from the manufacturer’s website;
http://support.amd.com/us/gpudownload/Pages/index.aspx
Method 2: download the windows 8 drivers from the computer manufacturer’s website.
Acer Support
Downloads & Support Documents - Aspire / Aspire 5560G
Acer Support: Downloads & Support Documents - Notebook, Ultrabook / Aspire / Aspire 5560G
If the issue still persists, I would suggest you to download the drivers by going to the video card manufacturer’s website and get it installed
If you need any further assistance, please reply and we will be happy to help you.