I have Compaq Desk Pro EN(tower) w/Intel Pentium III processor, 865mhz, 512mb of ram. My operating system is WinXP ser.Pac2. I installed the game and it wouldn't play upon clicking start. I checked the prism3d log report and it read "software openGL detected, refusing to run the game in openGL. I was told that I need to upgrade my video card to play 18 Wheels of Steel: Petal to the Metal. The requirments include PentiumIII, 800mhz or faster DirectX 8.1 32mb video card w/T&L and DirectX 8.1 compliant DirectX compatible sound card 200mb free HD space 4X CD ROM Drive Should the Radeon 9550 video card, 8X AGP, 256MB DDR be sufficent? And if so will this card cause game Lag? And can you list advantages and disadvantages?