Update Adobe Flash Player on my iMac

[Guest]

I am trying to update my current version of Adobe Flash Player on my iMac.  My iMac has Mac OS X version 10.7.5, and I use Safari as my primary browser (although that probably doesn't much matter.

After opening and launching the installer, I get a message indicating that I need to quit "DashboardClient" in order to continue the installation.  I do not know how to comply.  There is a Dashboard in the OS, but I do not know how to quit it....

[pwillener]

Use the Activity Monitor to close running processes on a Mac.

[gerrip7455130]

and where do I find it on my imac and how to close?