attached

it will not allow me to attach a txt file
error: The extension txt is not allowed.

checked video drivers again,all up to date, how do you do you upload a dxdiag report ?

error message: extension missing: ARB_VERTEX_BUFFER_OBJECT
download from your website and the CD - getting the same error
uninstalled and re installed
turned off intro
updated video drivers
still getting the same error and cannot play the game

In the game Troy, and Spartan the games will not let me build city walls, even when all techs are fully reseached, is there a patch or code to fix this problem?