SSE (silk-screen effect), SDE (screen door effect), sparkles, etc. are all describing the same thing. I think Videobruce said it best earlier in the thread, it reminds him of new fallen snow. Most of the time you will see it in whites on RPTVs, and if it is really bad you may see it everywhere.
I tried to take a few pictures before and after my tweaks to show the difference that they made, but pictures really don't allow for it to show up for some reason. Some people notice it more than others, but I think it is apparent to more people that DLP rainbows are. I have played with both the A2000 and the 97 series JVCs (out of the box and playing with the settings) - SSE is worse on the JVC out of the box but they are about equal once each is tweaked in my mind.