One of my clients is a graphics professional who works in a corporate environment. It took a lot longer than anticipated to perform the routine task of upgrading her Mac Pro to Adobe Creative Suite 5 Standard.
Prior to the upgrade, my client was running CS4. I dutifully deactivated and uninstalled CS4 before starting the Adobe CS5 Installer. During installation, the CS5 installer encountered a corporate firewall that interrupted the installation process when it was attempting to install the Adobe Help components and had reached the 8% complete level.
I tried installing the software while running the Mac Pro in Safe Mode, but the CS5 installation disk wouldn’t mount on the desktop for reasons unknown. I then restarted the Mac in a normal manner and took the drastic step of unplugging the Ethernet cable from the back of the computer to take it off the network. Doing so avoided the firewall interruption and allowed CS5 to install. When the installer completed its work, I reinserted the Ethernet cable into the back of the Mac and tested the Adobe programs to make sure they worked as expected.