Left 4 dead 2 mac mouse problem help. : steam for mac

I installed the game properly and when I run it, the menu appears and when I choose to run a campaign, at 90 of the loading it stops and quits to the desktop with no errors showing up.

You can try this: Navigate to your windows folder (usually c:windows) Inside there, goto the CSC folder Try to open the folder and it should fail (if it doesnt, you have a different problem).

Itll come up with You dont currently have permission to access this folder at which time you keep pressing continue until it says youve been denied.

Go to the security tab at which point itll say To continue, you must be an administrative user with permission to view this objects security properties at which point you click continue.

Click on admin in the owner tab which will swap the owner to the administrator then click OK.

You then click on OK once again which will bring up the security tab.

Tick full control, press OK twice to get out of the properties tabs.

Run the game. If that doesnt work (which it didnt for me), try shutting down your anti-virus program.

I just kept restarting steamrestarting computer and it worked eventually.

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Left 4 Dead 2 Mac Mouse Problem Help. : Steam For Mac