Does Intel 82945g chipset has pixelshader 1.1 or above games using pixelshaders are not running is it due to wrong drivers 've the latest version of Intel's site and i don't want to use 3D analyze?

If you have a dedicated type of video card, then it is not a chipset problem. It's a video card feature to have pixel sharer support. Check support website for information and detailed information about your video card and for fresh drivers. Also free software SiSoft Sandra can give you a lot of usuful information about your hardware including shader support.