I did a clean install of mountain lion using a bootable disk. Went into disk utility and erased the lion partition before the re-install.
Now when I go into the app store it thinks that all the apps that I have installed through the app store are already installed on the computer. It seems that the app store is consulting apples servers rather than my local machine so I can't install any of the apps because the buttons say the app is already installed.
How can I tell the app store that it's wrong that apps are not installed locally.