Flash stopped a potentially unsafe operation

Well i've search the forums and found a number of people with this problem.

I get the annoying Security window telling me its blocked some "unsafe" operation when trying to open an HTML from within Flash. On my on-line comp i've changed the settings on the Macromedia site to ALLOW ALL, and no longer get the message.

But i have another computer that's not conected to the internet. How can i change the Flash player settings offline?

I don't understand why i have to go to Macromedia (Adobe now) site to change my security settings. Why can't Adobe put some damn settings menu in the Flash Player? Like a browser.

Please help. Its urgent.
Thank you