Since upgrade to KDE 4.7.4 desktop effects do not work anymore

[Luc Castermans]

Hi,

Till yesterdays upgrade of Debian Wheezy / KDE from 4.6.5 to 4.7.4 the desktop
effects on my PC worked.   Now they stopped working.

I've a NVIDIA card using propriatery nvidia-driver.

Please help!

Regards,

Luc

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