Please someone help me with a error message using HFSS v9.0

Hi...
I′m new in HFSS and I can′t finalize my simulations cause everytime i see the same message:

"" filtro (D:/Documents and Settings/geraldo.cesar/Meus documentos/Ansoft/)
HFSSDesign1
[error] Initial mesh, process mesh3d : Error while opening or writing the mesh files. (11:27 set 27, 2007)
[error] Simulation completed with execution error on server: Local Machine. (11:27 set 27, 2007)""

Please, if someone knows what′s is happeing help me...

Regards.

Geraldo César

Hi
if your model and boundery and feed and analysis step are correct, I think you're using unregisted version or your model (radiation box) is too much big. it's better that you use HFSS v9.2 or 10

Tha't mean you've had the problem with your structure's geologique. For example may be you drew a L tube but you didn't creat the symetric zone. Try to re-draw the structure. Or post it here.