When minimizing or maximizing windows or when moving windows from one monitor to the other, I get extreme flickering of the window moved. Without AeroGlass everything is fine! I have a registered version but it does not depend on free or registered version. Perhaps it is hardware related, I have an Asus N550JW Laptop with DELL UP3216Q connected. It has Intel and Nvidia hybrid graphics solution. Flickering is extreme with Internet Explorer used! Flickering is so bad, I had to uninstall AeroGlass. I use Windows 10, latest version. I think there is a Memory issue in AeroGlass. Please fix it.