[dune-fem] UMFPACKOp<DF,Op>: Segmentation fault

[Franz Rammerstorfer]

Hi everybody,
I tried to use the direct solver of dune-fem (UMFPACK) and run into 
following issue:
The tutorial fem-howto/poisson (2d) is perfectly working (CG-solver), 
but if I want to use Dune::UMFPACKOp<DF,Op> as InverseOperatorType
I get a Seg. fault. Does anybody face the same problem? Maybe its just a 
problem of my UMFPACK version.
Regards,
Franz