* Make sure you run an Adobe CS4 application once (use trial if asked). And after run any CS4 application, quit any open CS4 application. * If you’ve previously entered a serial, run any Adobe CS4 application, go to the Help menu of it and deactivate. Quit any open Adobe CS4 aplication after deactivation. * Open Terminal (found in Applications/Utilities/). In the terminal window, paste this: sudo /Applications/TextEdit.app/Contents/MacOS/TextEdit /etc/hosts * Hit return and type in your admin password of your Mac when asked * A file will automatically open in TextEdit application. In … [Read more...]