dit is wel bizar.. en hoe begon je hem te installeren? heb je het gedaan op dezelfde manier als dit :
"Using Steam launch options to install from disc
1.Log in to Steam and click the My games tab.
2.Right-click on the game, select Delete local content, and confirm.
3.Insert the first disc into your computer.
4.Close Steam (File > Exit).
5.Go to the Start button and select Run (XP) or type Run (uitvoeren) in the Search box and choose Run from the list (Vista).
6.In the Run window type:
"C:\Program Files\Steam\Steam.exe" -install E:
Replace 'E:' with the CD/DVD drive you are installing from if is not correct.
Replace 'C:\Program Files\Steam' if your Steam installation is not in the default location.
7.Press OK. Your installation should continue from the disc.
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