If you have a Visor Prism, you already know that you can adjust its brightness by holding the power button.  SG, one of our readers, has found a way to adjust the contrast of the Prism.  This is especially helpful for those that have shimmer problems with the Prism.  Here is the procedure:- Go to Prefs 
 
- Change Date to Jan 1 1904 
 
- Hold down the Prism's Power button
 
- Adjust Brightness (this is actually Contrast) to the left (~1/3 of they way to correct shimmering)
How SG found this I have no idea.  Click here for the discussion on the secret fix.  I wonder what date fixes the 4 KB Memopad limit?
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