hi. i am currently playing gta 4 but it is running slow,specially while i'm on a mission. i can't find out the reason for this. my system specifications are way too better that required. the pc requirements for gta 4: OS: Windows Vista Service Packk 1 or Windows XP Service Pack 3 Processor: Intel Core 2 Duo 1.8Ghz or AMD Athlon X2 64 2.4 Ghz Memory: 1.5 GB for Vista, 1 GB for XP, 16GB free hard disk space Video Card: 256MB Nvidia 7900 or 256 MB ATI X1900 my system specifications: OS: windows 7 professional processor:Intel core 2 duo 2.9 GHZ RAM:4 GB free Hard disk space: 250 GB Video card:ATI Radeon HD 4350 1GB please tell why this game is running slow and the solution.