Actually i was using win dvd 6 before i came to know about the new power DVD 6! Then i get shifted to it. Now as the new Win DVD 7 is released, i was trying to install it on my system.But to my surprise, even after the installation i am not able to play any files on it and even after the restart, it doesn't open,plus its starting logo comes and halts my system. Hence, I am asking for help?? By the way, is windvd 7 worth installing?? Please let me know ur suggestions, and your choices. Thank you very much.