Version: (using KDE KDE 3.2.1) Installed from: Debian testing/unstable Packages In Konqueror 3.2.0 you could reorder tabs by dragging them with the mouse. In Konqueror 3.2.1 this will replace the content of existing tabs or create a new one which is a copy of the dragged, depending on where you drop after the drag. I find this behaviour rather confusing to say the least and, worse, could not find any different way to reorder tabs with the mouse. As dublicating tabs can easily be achieved with the tabs popup menu, I guess the current strange tab-drag-behaviour is simply a bug.
You're confusing left and middle mouse buttons. Middle mouse button let's you reorder tabs (in Konqueror and Konsole) and icons on the panel. What you describe here as behavior is drag-and-drop with left mouse button. There were some default Konqueror gestures added to KHotKeys in 3.2.1. If you check "Disable mouse gestures globally" it works again with Konqueror tabs.
Disable gestures for konqueror in the khotkeys kcontrol module or lower the gesture timeout there and wait until the timeout expires before doing middle mouse button DND in konqueror.
Why are gestures enabled per default at all?
Right, right, stupid me... After disabling gestures it works. However, this interaction between gestures and other mouse actions is at least unfortunate, although I really do not know how it could be properly avoided... Maybe Konqui or kHotKeys should display an information like "mouse gesture engaged" somewhere when recognizing a gesture? Maybe xosd like... And a configure option to switch it off, but enabled by default so dummies like me are not too confused by the "unexpected" behaviour. ;)
*** Bug 79201 has been marked as a duplicate of this bug. ***