If you are experiencing many install failures or MD5 checksum failures with the MacGameStore App, your hard drive may have a problem. We suggest running Disk Utility to see if it maybe fixes the problem.
1) Open your Applications folder. Then open the Utilities folder.
2) Find Disk Utility and double click on it to launch it.
3) Select your hard drive and select "Disk Permissions". Once that is completed, also click on "Verify Disk" to make sure your hard drive is ok.
