CorelDraw Error to open

Dear All

My CorelDraw 12 version canot open. When i open the coreldraw logo will come after 5 secent that will disappear. I can open other Corel Graphic suites, ie.. Corel Photopaint 12, Corel R.A.V.E. 3.0. etc., CorelDraw only not working. Now i used Corel R.A.V.E. as CorelDraw. Kindly help me to open CorelDraw

Thanking you