Installing the Logic Pro or Logic Express version 7.1.1 update works fine in Mac OS X 10.3.9 and 10.4.2 and later, but it won't work in earlier Tiger builds (10.4 and 10.4.1). When you try to update Logic 7.1 to version 7.1.1 on a computer with Mac OS X 10.4 or 10.4.1:
To resolve the issue, Tiger users should update to 10.4.2 or later, then reapply the Logic 7.1.1 update.