No longer works with the new version of an old program F.P.

[pippo alpha]

With an old program in compatibility mode with Vista, by installing the latest version (20.00) no longer works, while the 19 runs.

Thank you

[jeromiec83223024 · Accepted solution]

That's not a lot to go on, but I'm aware of one bug that might have this side-effect at the moment. 

I expect it should be resolved in next week's beta release, here: http://www.adobe.com/go/flashplayerbeta/