KDE 4.5.2 - Disk free space info missing in Dolphin

[Sonic]

Hello

     I recently upgraded to KDE SC 4.5 from kde-testing. But now, 
Dolphin doesn't show disk free space properly in the 'Places' side panel.
The slider is present (please see the attached screenshot), but no 
information on it. The free space info is shown correctly on the status bar.

I have nvidia proprietary driver and compositing enabled.

Anybody else seeing this?

regards,

Syam

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