My name is Alex, my computer is having some trouble running GTA IV, I have an AMD Phenom II x2 555BE paired with 4GB ddr3 ram and an ATI Radeon hd 4670 1GB. The game only takes up 400MB/1GB on the settings I chose, and it only takes up 50% of the CPU. and 3GB of the ram. (And I set the game lower than the recommended settings for my computer.) I'm attempting to run it at Medium Textures, low quality shadows, very high reflection resolution, 1680x1050, low quality water, view and detail distance both at 10, Vehicle density at 1. and the FPS I'm getting ranges from 15-25 FPS. Thanks in advance!