I agree with Forester - I've got the AMD 3800 dual-core with 4gigs on an HP and it runs Vue (as well as C4D 9.6, Poser6, and Bryce 5.5) like a dream - I also have a NiVidia 7800 GT-OC so I'm wondering what graphics card you have?

Djeser's also right - send in a message to e-on with a complete list of your specs and see if they have a solution for you.
Good luck-
-Lew ;-)