Hi, i got L4D2 the other day, when i tried to install it the disk wouldnt show up on my computer neither would it load. when i clicked on the disk drive it comes up with a blank screen then an error message saying "please insert disk into drive (:d)" so i keep putting the game in trying to get it to work and this message keeps coming up. so i tried using a differnt disk (a steering wheel instalation disk) and it works.
does anyone know why or how to fix it
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into drive (: d)
You have to install steam. You don't need the disk in the drive to run L4D2.