Hi again, well, after some correspondence, this is the last reply I received:-
Thank you for contacting DreamCatcher Interactive’s Technical Support department.
We are really sorry for the inconvenience you had.
There is a serious issue with the game under Window Vista/7 OS(Operating System).
This is a well-known issue about the game. We assure you that we are working hard to solve this issue. As soon as we find a solution, we will contact you.
Thank you for your understanding and patience.
DreamCatcher Interactive Inc.