I got a new computer and uninstalled CorelDraw X6 from my old computer and then installed it on my new computer. After a few days I started receiving the warning that the serial number was invalid.
I've been using this software since it came out with no problems. It's only installed on one computer.
I called Corel and it took them 2 days to send me an email saying to use the installer they sent. I did and I'm getting the error again.
Corel's customer support is a joke.