Active Desktop Borders in KDE 3.5.8
I'm looking for the feature where moving your mouse off the edge of a desktop switches to the desktop next to it. I think it is called active desktop borders. I know it is a feature in XFCE, and I thought it was also a feature in KDE, but I can't seem to find it anywhere in the control center of KDE 3.5.8.
Anyone know how to do this?