Run nt6srccfg.exe in the folder to tweak your screensavers.
Change any of the controls you want in the screensaver tweaker, and click Apply.
punch the Screensaver button on the bottom right.
Now, select your modified screensaver, and click Preview to see your changes.
The tweaks to the Bubbles screensaver are especially nice.
Here’s how the Bubbles look without transparency.
Ribbons and Mystify each have less prefs, but still can produce some unique effects.
How’s that for a brilliant screensaver?
Also, you’ll probably want tocreate a System Restore Point.
Link
Download the System Screensavers Tweaker
