That is no bug. LOL
That is deliberate nuissance placed on cracked serial number.
If you buy the software, and you will not have that problem.
Same that Adobe disabled all the shortcut keys in cracked Photoshop CS.
Software companies are finally getting tough with pirates
This is just the begining. By one year more possiblement, telephone registration is going to be very common on alot of software. The infrastucture for this is being put in place as we speak.
My Uncle was a head engineer for the former COREL company, and now is work for Siemann's, and this project is one he has been involved in for some time.