Rome Total War: Help me help my 12 yr old

[skunkwrx]

ok, he just bought rome total war/barbarian invasion. e have been trying to install this game for 4 days. i finally had to reinstall xp pro just to get the install to complete. now that we have it installed we put disk 1 into the drive and execute the game from the dektop icon. an error message appears asking to put the "correct disk in drive" or "no disk found". i cannot see the disk contents in explorer but can see every other disks stuff with no problem. if i take disk 1 to another pc it works fine. oddly enough the barbarian invasion disk will run and the game plays.

any ideas? my kid is having a cow.