« Reply #4 on: November 14, 2014, 10:49:35 PM »
You can start with a good detergent (Dawn dish washing liquid) and soft scrub brush and if that fails try 90% isopropyl alcohol, although for old dried fingerprints Tert-Butyl alcohol works. Then use a Retr0Brite solution of 12% hydrogen peroxide is a bowl of warm water for the yellowing; remember that once the are rinsed and dried from the peroxide bath to spray a coat of clear polyurethane to prevent yellow from returning.
Just a suggestion.
Cheers danbeaver will give it a try, I have just set it up to test it and it appears that the floppy drive is not working so looks like I am going to have to clean that to, if it still doesn't work then I will have to buy a new from amigkit.

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