Virtual Memory

I've googled this but can't understand a thing they're saying so if you would explain it in nice easy redneck terms yippee.
The orginal Titan Quest downloaded just fine but a message: Virtual memory must be installed to play.
What does this mean
Will it hurt my cmptr
how do I
HP Pavilion delux e9290f
It has 9GB memory so why does it need more
Could never find a compatibility mode on this like then Dell XP had

It's a bug that prevents the game from running if you have more than 4GB of memory. Download the patch from here, that should fix it. Awesome game by the way

Wow, that was fast - my grandmother came from Horsens Denmark. Will try it tomorrow. Yeah, I want a game to kind of wind down at night after all the shooters. Thanks so much. Google mentioned hackers and all that and I'm not going there.

And I live just north of Horsens

Land of Hamlet must be Elsenor. We are good people.