Now that you’ve got Flash working, install the NoScript add-on to shut it off again. That is, unless you specifically want it on for a particular site and/or object, which you can re-enable via right mouse-click.
Thanks for the tip. Problem I have now is installing powerpoint viewer. Wonder if I have to exit all browsers like instructed by Sprite518 up-thread? Perhaps any or all programs will have to be installed with the same procedure?