corel 11 / win 7 compatability

spent many hrs on tech help w/HP and MS....I was shown how to correct compatabilty with corel 11 to XP via the options under "properties" of Corel 11.  Yet every time I try to do something in Corel 11 the program crashes.  I MUST use Corel 11 in order to make the files work with K-Cam, the
CNC software in my Kern Laser....

HP Pavilion dv8t quad notebook with Windows7

any help to keep Corel from crashing??

OR is it possible to move back to XP if it was never installed on this NEW laptop?

PLEASE help soon

thanks