OpenFOAM vtkPVDataInformation.

I try to open the cavity OpenFOAM and i receive this ERROR
I doawnload the new and very nice CAELinux 2009 (thanks for your works)
What can i do


RROR: In /home/caelinux/OpenFOAM/ThirdParty/ParaView3.3-cvs/VTK/Filtering/vtkExecutive.cxx, line 757
vtkCompositeDataPipeline (0x1223210): Algorithm vtkFileSeriesReader(0x1224360) returned failure for request: vtkInformation (0x1223c70)
Debug: Off
Modified Time: 81575
Reference Count: 1
Registered Events: (none)
Request: REQUEST_DATA_OBJECT
FORWARD_DIRECTION: 0
ALGORITHM_AFTER_FORWARD: 1




ERROR: In /home/caelinux/OpenFOAM/ThirdParty/ParaView3.3-cvs/Servers/Common/vtkPVDataInformation.cxx, line 493
vtkPVDataInformation (0xffd4f0): Could not cast object to a known data set: vtkAlgorithmOutput

I reboot the CAELinux and now the problem is fix.
sory for the stupid question...