[openbox] openbox/lxde and empty QT windows

[Eugene M. Zheganin]

Hi.

I'm using LXDE/openbox, and I have a problem.
After some time running I'm starting to get empty windows from a QT
applications:

http://zhegan.in/files/screen-lxde3.png

what's causing them ?

I've asked on a LXDE forum too, but got no answer.
After I restart X or exit/enter LXDE this issue is gone for some time,
but then it starts again.

Thanks.
Eugene.
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