i am having p4 2.8 ghz ,512 mb ram(ddr 266 mhz),ge-force 6800GT(128mb,agp 8x) card using xp OS.i recently purchased half life-2(original) , after installing it when i double click desktop icon it takes about 7 mins to open and after opening also steam doesn't gets updated( i am using sify 48kbps...