I am going to install an upgrade copy of W7 on my Vostro 420 and windows advisor says Virtualization technology not supported with my computer ... also Aero not supported ... Dell is not any help explaining why ... Intel Core 2 Quad Q8200 (2.33 GHz, 4M, L2Chashe,1333FSB) ... 3 GB memory ... 256 MB ATI Radeon HD 3450 ... XP ... can someone explain what I need to upgrade to allow virtualization ... is it the graphics card? ... and if so ... what do I need to look for in graphics card that will work ... also planning on 64 bit ... Thanks ... John