um... you plan to buy it in December, or you plan to buy it
again when the English version is release in December?
I have not been following the help forum much to avoid spoilers, but IIRC someone else had a problem with switching to dragon form that someone said could be related to copy protection. Try without a no-DVD crack, or try the DVD in your lowest drive letter optical drive (apparently the copy protection can get picky about which drive it will accept).
Have you made any changes recently with drivers or programs that may be running in the background, etc?
