"Program stopped working" error message when starting CorelDraw X4

I am not able to open my Coreldraw X4 for some reason. As soon as I click on the icon the CorelDraw box comes up as normal, then a box pops up saying that the "program CorelDraw X4 has stopped working", and shuts down. I have tried opening up other programs from the graphic suite and they open fine. Corel Paint.....Corel Capture.....etc. Everything opens fine except for the Coreldraw. I have been using Corel for several years with my business, and I have had this X4 installed for probably a year or two. Not sure what has changed to cause this.  Has me stumped. Any suggestions?