[Task Manager] not focusing on a program in taskbar when moving a file there (Kubuntu 12.10)

[Yevheniy]

I can not focus on an application when moving a file (mp3, subtitles etc.) from a browser (e.g. dolphin) on a program, which is in taskbar (vlc, audacious etc.). Such function is useful when adding more songs to a playlist or adding subtitles to an already opened movie etc.

Add info:
- It does not matter if program is maximized or minimized.
- Does not work with any application (so looks like it's a KDE problem)
- such function is present in Windows(!)

System tried:
Kubuntu 12.04 (64 bit) and Kubuntu 12.10 (64 bit) with KDE 3.9.3 (and may on the previous versions).

I hope, that I explained it clear:)