I have a legal copy of X6 from Corel. When my power went out and I rebooted, it reloaded and gave me a message that I had an illegal copy. I have my copy registered and have been using this since 2009. I have work to do today and cannot get a hold of anyone at Corel. HELP!!
I'm not sure if this will work, because you possibly have some corruption on the hard drive which is causing the problem. But it may be worth trying a windows system restore back to the previous restore point.
Great idea, I will give it a shot!