SamMast

Hey i currently installed a game called Aion. I can play the game with little to no lag, but my FPS is not great. The main problem i have is i can only play the graphics on low, if i try to bring them higher, all the animations and details turn black. My computer is Dimension 3510 Dell and has: Ati Radeon x300/x550/x1050 graphics card ,2.5 ram,Microsoft Windows XP Professional, im not sure what sound card i have, but the sound plays perfectly fine and is compatible with directx 9.0c. My processor is Intel® Pentium® 4 CPU 3.00Ghz (2 CPus). 37.4 GB free disk space. When i went to Can You Run Itand searched for Aion, it told me my graphics card was the problem. So i think that might be it, but im looking here for 2nd opinion and advice, if it is my graphics card, i need to know which one to get and if my pc is compatible and my budget is $150-$200. Please help with my question and tell me if i left anything out in my computer description that might be causing it. Here are the recommend game Reqs: OS-Windows XP/Vista Processor:Pentium Dual Core, AMD Athlon 64 X2 RAM-2GB RAM Video Card:GeForce 7600, Radeon X2600 Sound Card- DirectX 9.0c compatible DVD-ROM:- Quad-speed (4x) DVD-ROM drive Hard Drive Space:30GB of free space or more