When I attempt to install, I receive a message telling me to close my dashboard client first. How do I do that, and just as important, how do I reopen it after installation is complete?
Mac HD/Applications/Utilities. Open Activity Monitor.
In Activity Monitor, click the "Process Name" heading to sort alphabetically, and scroll to Dashboard in the list.
Click the Dashboard items one at a time, and clikc the octagonal icon to force the process to quit.
To restart the processes, reboot.
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