How do I get adobe flash up and running on Safari?

[inukjuak90]

That ''Flash Player'' message typically shows-up when either your computer's Cache,
Virtual Memory, and/or Pagefiling has been overwhelmed.   Simply clear your Cache
Cookies and History, then shutdown and reboot.  Afterwards, you'll totally flip at how
smooth and trouble-free your YouTube (and internet surfing) will be.

→  Safari (menu bar)  →  Reset Safari
[x] Clear history
[x] Remove all webpage preview images
[x] Remove all website data
→  Reset

→  Safari (menu bar)  →  Preferences  →  Privacy (icon)
→  Show Cookies  →  Remove All
→  Done

Shutdown / reboot afterwards, and voilà!

:-)