Cleaning up yellowed/grubby plastic?

It was written.. As I understand it, the yellowing is a reaction to light. It is the plastic itself turning color, so there is no way to "clean" it off. But as has been said, the yellowing is much worse in smoking environments, and some of the smoke can be taken off. I also have used 409 with fair results. 409 is what I usually use on cabinets and enclosures. It wont get rid of the yellow as that's now part of the plastic, but it does help a small amount. However, a while back my wife came home with these "Magic cleaning blocks". Basically a harder than usual sponge with some cleaning chemicals ingrained in it. I looked at her with more than a little disbelief when she suggested I use it on my "old computer stuff". Then someone on the list posted about good results with them, and I tried them. They are quite good for cleaning up old computers. They do a good job of cleaning the textured plastic without removing it or "sanding" it. I think Sam's has them for a decent price in bulk. I'd recommend them for sure. I have yet to try one on a yellowed plastic panel, but soon I will :) Regards, Jay West --- [This E-mail scanned for viruses by Declude Virus]