it won't work..

When I click play an error message pops up. It says:

"Violation d'accèss à l'adresse 0063CC15 dans le module 'GP5.exe' lecture de l'adresse 00000011"

then if I click OK the message goes away, and I am unable to to anything else with the program.
Has anyone else encountered this problem?
if so, how do I fix it?
Looks like GP5.exe is causing a memory access error on your system. My suggestion is buy the software or un-install and re-install.
lol @ the error message being in french.
If you've still got the installation file, re-install it.