America's Army help on vista

[Flashbang]

Hey I installed America's Army:Special Forces (Overmatch) 2.8.3 on Vista PC after much difficulty but it installed.Phew!Now when i click on the icon,the screen appears,I click on the Play buuton ,select the type and then the screen of loading appears and stays...The doesn't continue after that. I ran it in administrative mode,and also in compatibility mode but no avail.Please help.

 

[MetalheadGautham]

whats your internet speed ?
whats your system configuration ?

 

[Flashbang]

whats your internet speed ?
whats your system configuration ?

Sys config
Centrino duo 2.0 GHz
8600 M GT 256 MB
Windows Vista
I wanna play it in single player mode.Is it still necessary to use internet