Hi

Please see this topic:

http://bbs.keyhole.com/ubb/showflat.php/Cat/0/Number/531603/an//page//vc/1


The solution may be switching to "safe mode".

On the other hand, your system seems to be starting confused. You'd better take action before it afflicts you. Try to install dx90c (not 9) first. No application can indicate a version that does not exist. It is that you previously had dx8 (or a game is confusing the system).
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