Version:            (using KDE KDE 3.3.0)
Installed from:    RedHat RPMs
Compiler:           Installed from Fedora Core 3 installation disks
OS:                Linux

There is a problem regarding the backgrounds, either the main wallpaper or each window background. Whenever you do click with the left-button in any area of the wallpaper, the pixels at the mouse pointer get white. This also happens when doing "dragging" of any icon.

Example 1: I have a blue background. I just move my mouse and do several clicks (always left-clicks). The result: white pixels right where the clicks were done.

Example 2: I open a Konqueror window, I can see my folders on an ICON view. I have, again, a non-white background for this window (one selected from the "colors" backgrounds available for each window). If I click anywhere in the window, withouth clicking on any icon (meaning, I click on the background) I got the pixels turn white. 

Example 3: Select the "Trash" icon on the main screen. Click on it and drag it around the  main screen, over the wallpaper. The result: a trail of white pixels following the movement of the icon. The same happens if you move some icon inside any konqueror window.

All of these problems go away when I "refresh" the background. For the case of the wallpaper, I right-click, menu, click on "Refresh Desktop" and the white pixels are gone. Inside a konqueror window full of icons, I just move an icon over the white pixels,or I move the scroll bar up and down and the background gets "refreshed' in somw way.

I have also GNOME on my computer, this does not happen there. 

This is how I reproduce it:
Case I:
- Start KDE
- Make sure to use a non-white wallpaper
- Move freely your mouse pointer, left-click on empty space (I mean, dont click over an object, just click over your wallpaper)
- When clicking, the pixels under the mouse pointer become white.
- These pixels stay white until...
- Right-click, "Refresh Desktop" and the white pixels are back to normal.
Case II:
- Now, click on "Home" (open Konqueror)
-Make sure to be on "Icon view"
-Make sure the background of this window is non-white (use a "color" or "pattern" background for this window)
- Again, left-click on empty space inside this window
- Again, white pixels at the click location.
-White pixels return to normality when moving an icon over them, or scrolling up/down.
Case III:
-Select any icon on your desktop. 
-Move it freely ("drag" it)
-The pixels over the trajectory of the dragging are white. Not all of them, however, so this is not like using an "eraser" as in any graphic editor. It is more like using an "airbrush" with the contour of the icon as moving pattern.


All of these anomalies go away when "refreshing" the desktop or window.