I have a 3.0GHz, 1 Gig ram, Axper P4 LGA775 533MHz FSB. Running windows XP Professional. No video card, no sound card and no graphics card. I recently downloaded Flight Gear Simulator and it tends to freeze. Do I need a graphics card and what type is best to put. Allso do I need to put a video card in as well. I only plan to run this type of game and plan to buy the Microsoft Flight Simulator X in the future. Please tell me what ever it is that I need to buy to make this game work.