I'm thinking of buying a new labtop. The main reason for this is that my curent labtop video card can't run MTW, (something about Direct X.....)

i'm thinking of buying one that has ATI MOBILITY™ RADEON™ AGP 4X and 3D architecture graphics and 64MB shared video memory
has anyone tested the game on this system?
if not does anyone know what the hell is shared video memory?
(and the last only can be answered by CA) will this card do for RTW? (cause MTW said 16MB+, my current labtop is 32, but it doesn't work)