Hi,
1. First, make sure that your computer meets the system requirements of the game.
2. Update video driver and see if it helps.
Please see:
Program freezes at Launch Screen
http://support.encore.com/technicalsupport/kb.aspx?kb_id=1607&product_id=2968
Please Note: Since the website is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
3. As Milos suggested, it is recommended to contact Encore Support for assistance. Because they are the best resource of the game. Thank you for your understanding.
Hope your issue will be resolved soon!
Tracy Cai
TechNet Community Support
