I have a 2.5 GHz Intel Core 2 Duo with 4 GB SDRAM. On certain U-tube and other videos, but not all, I get a message that says I need to install the new Flash player. When I go to the link provided, or directly to the Adobe web site, and install the Flash player, I continue to get the message telling me I need a new flash player.
When I run the Adobe help for Flash, I get a blank box where I should see my version of flash and my operating system. When I repeatedly run the Flash uninstall program for Snow Leopard, and reinstall Flash, the result is the same.
I get the same result for Mountain Lion.