memento mori 2,HELP

i installed on my computer,the game,(memento mori 2),from a
dvd,not now but for about 2 years ago,i played it also,this
is a very nice game,i still have windows xp 32 bit,also my
computer is a dell,and the audio,and the video chips are built with the motherboard,and i have a whole bunch of games
not all of them went smooth,i installed a video card with 2
gig ram from,(EVGA nvidia geforce GT 620),all games played very good,but for about 2 weeks ago,the video card became dead,i could not find the same again,i bought another video
card,(EVGA nvidia geforce GT 730),but now i tried to play
memento mori 2,wich is connected to steam,but instead i get
a error message saying,(nvidia physx library not found,or
invalid please reinstall the game,i did so,but the same error comes up again,i searched the dvd,i found in a folder
the install program,for the physx drivers,problem is,it says
the drivers wich you want to install,are older then the one wich you have,and the instalation stops,i am STUCK,PLEASE
HELP me out,i thank in advance
samuel

If you have a later version of Nvidia PhysX installed than what the game uses, that may cause the game not to work. PhysX isn't 100% backwards compatible.

Maybe try uninstalling PhysX and reinstalling it.
You have to make sure you completely get rid of it before attempting to install the version that comes with the game or it will give you an error.

http://www.uninstallhelps.com/how-to-uninstall-nvidia-physx.html

I found this on Steam.

thanks for all of you,trying to help me out,you found the problem,with the solution also,i completly removed my newer
physx drivers,then i took my dvd,from memento mori 2,game
then i installed the older drivers,from the dvd,and now,NO MORE
PROBLEMS,the game works fine nice and good
samuel