[abhijit_reddevil]

I have forceware 91.31. Anyway, thanks to everyone, the problem is solved. Actually in the config xml, the setting for resolution was 1024 X 768 @ 75Hz. This refresh frequency is not supported by my old monitor. So I could hear the sounds but not the display. I reverted it back to 60Hz and it worked! It will not work by changing the game settings from inside the game but it will work if you edit the xml file in mydocuments\my games\AoEIII\...