Connect a standard pc monitor to the pc in the force. Disconnect the supply power from it's original monitor (this ensures nothing can happen with the original monitor) See if the system starts up normally into the game.
If that's the case, your only problem is the original monitor.
The harddisk and the monitor are 2 non related items. If both are bad, it means you had an untrustfull seller that sold you a bad machine in the first place. Something could have happened during transportation as well, but normally harddisks park their heads next to the platters when they are not energised. This prevents damage due to shocks when the disk isn't running.