Deus Ex Invisible War Vista

I have got a real problem with this game, the rendering, its sometimes really fast and then ultra slow, I put low graphics on and its still this shit, any help? It wont work properly on my Vista computer.
HDD21 wrote:I Have re-installed my windows
WjSiSBest wrote:''Same'' Im On Vista 32 bit ??? Use OpenGl Will Work Best On Vista ????
~DJ~ wrote:He looks like HDD :$
He type stuff like HDD :$