Bald Brick Thank you, your post did help.

I have a very clouded idea of what you are talking about. The "desktops" are a bit of a mystery to me, so try to leave it/them alone since going to KDE4. I am tempted to say I have not created the icons they just pop up when I drop a file there by placing it in the Desktop directory using Konqueror.
I do know that by right clicking on the Desktop -> Folder View Settings -> View -> "options" and when this odd thing happens on occasion I think I have recovered by changing between Desktop and Folder View until it comes right. I tried this this time but it did not seem to do anything.
Reading your post I decided to do the same again (also another re-boot in the form of a complete power down/startup, I forgot this yesterday, only rebooted) plus I changed my wallpaper to something a bit more plain so nothing would hide under the foliage. (Landscape with trees). To my delight all my 21 missing icons are back.
I notice that the icon for Firefox, K-ruler and Filezilla do not show up in the directory
Desktop does that mean they are a widget?
All the missing 'files' are the ones that I see in Konqueror when I look in the directory
Desktop (never occurred to me to look with Konqueror yesterday

, guess because nothing seemed to be wrong with the running of KDE-mini).
If the latter, could your folder view possibly have been transformed into a desktop view?
Yes I believe this is what happened, but understanding the Desktop and how it ought to be used is still above me.