Version: (using KDE 4.4.0) Installed from: Ubuntu Packages Drog-n-drop within dolphin works perfectly when you press the Hotkeys shown in the context menu which appears when you only drag-n-drop (Copy=Ctrl, Link here=...). But this doesn't work when you drag a file or picture out of Konqueror to Dolphin. While pressing the Ctrl-key, the context menu opens nevertheless showing the options and their hotkey speed-ups.
Thanks for the bug report! It is known that Ctrl is not taken into account when dragging items from one application and dropping them in another one. No solution has been found so far :-( *** This bug has been marked as a duplicate of bug 178679 ***