Repeatedly installing Flash Player 12 mac osx 10.7.12~ loads, finishes, welcome - no work???????????

[ThomasGrahamBellDVMPhD]

Repeatedly I install Flash Player 12 on mac osx 10.7.12~ loads, finishes, welcome - no work???????????  I have been using previous versions for many years - What the hey ?????  Should I go through and remove all previous versions???  I never get the screen that sez, "Adobe systems wishes to make changes ~ is that the problem?

[C_F_McBlob]

Do a "clean install": http://forums.adobe.com/thread/1343084

Follow the illustrated instructions at the end of that thread.