smplayer flickers while changing focus between monitors

[Andriopoulos Nikolaos]

smplayer does a short pause (audio and video) when i change the focus between monitors (no matter whats the program loosing or gaining focus)

Version: 0.6.9 (SVN r3447)
Using Qt 4.7.4 (compiled with Qt 4.7.2)
Using MPlayer SVN r33713
ubuntu 11.10 x64

 *-display
       description: VGA compatible controller
       product: GT218 [GeForce 210]
       vendor: nVidia Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a2
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
       configuration: driver=nvidia latency=0
       resources: irq:16 memory:de000000-deffffff memory:c0000000-cfffffff memory:d0000000-d1ffffff ioport:dc80(size=128) memory:dfe00000-dfe7ffff

working on kde Platform Version 4.7.2 (4.7.2)