Hi Jose,
Just keep your Amiga computers away from sunlight and florescent light and they should be fine. Yes, florescent light WILL yellow an Amiga case. I personally use 25W to 40W incandescent light in my computer room and I keep the curtains closed so no sunlight will shine on my precious Amiga and Atari ST computers. Also, if you smoke, do not do it in your computer room. When cleaning the dust off of your computer equipment only use a damp sponge to wipe it down. Then put that sponge away and only use it for cleaning your Amiga equipment. NEVER use your "Amiga sponge" for cleaning anything else, use it just for cleaning your Amiga equipment. ONLY USE WATER ON THE SPONGE, NOTHING ELSE! I have NEVER had a problem with any of my own computers turning yellow.
