[compiz] Drag'n'Drop problem

[Vojtech Kral]

Hi,
   Under certain circumstances, dnd doesn't work on my system with Qt 
applications.
This only happens when Compiz is active and with Qt-native applications 
(such as Qt's dnd demos).
Applications using GTK or KDElibs are unaffected. To make things even 
more strange,
the dnd works on part of the screen (top-left), but after the mouse 
cursor dragging an item
goes beyond a certain boundary, the drop can no longer be accepted. 
Furthermore, this
boundary changes depending on window position and size. With a 
maximized or full-screen window,
dnd works everywhere. But with the window getting smaller and/or moved 
towards the bottom-right corner,
the portion of the screen where drop works rapidly diminishes.

I've already askes on Qt mailing list, but didn't get much feedback.

My Compiz version: 0.8.8
And yes I tried disabling or plugins and even resseting Compiz
to default configuration, to no avail though.

Any ideas?

Thanks!

Vojtech Kral