Don’t worry, because some guys over at who knows where got the fix that will save you many hours of headaches. The problem lies within the “amtlib.dll” file in each of the CS4 application directories. However, downloading a simple fix and updating each of the files with a newer one can solve this problem.
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Only do the following steps if the previous steps didn’t work for you.
Go to C:\Windows\System32\drivers\etc, open the “hosts” file there with Notepad.