After 4½ years my license suddenly "EXPIRED". I paid $149 for a license with no limit ever being mentioned.

On Jan 18, 2010 I purchased directly from the Corel Store a license for CorelDraw Grahics Suite X4 Upgrade for $149.  This license never mentioned any limitation as far as time.  It was working fine last month, then today it just quit working and up pops a message saying my license is expired.  I set the date on my PC clock back a couple months and it suddenly worked again.

This is unacceptable.  I paid to use this forever if I want to.  I've been a CorelDraw user since version 1.0. I must say that no other company has ever pissed me off more for all their price gouging BS.  This time I am not even upgrading and I am being held hostage yet again.

How can I resolve this without having to set my PC clock back all the time?

My order number was 8587836