i don't know what's going on..i have backed up condition zero for my win98 SE pc so that i see if my lite-on can do any good.i backed it up aand everything went ok..but when i try to install the game it doesn't install..that is beacause when it get's to the middle of the installation and asks me to put the second cd in the tray after putting this and pressing ok it does nothing..!!!!

the installation this way cannot be completed....what can i do??????????