Thanks to Keith Schneider, we discovered memory related problems when reading Siemens DICOM files. This update should fix those bugs. There are two programs, mri_convert and mri_parse_sdcmdir, and they should go into your $FREESURFER_HOME/bin/$OS directory.
Darwin: ftp://surfer.nmr.mgh.harvard.edu/pub/dist/mri_convert-20041012-Darwin.tar.gz
Linux: ftp://surfer.nmr.mgh.harvard.edu/pub/dist/mri_convert-20041012-Linux.tar.gz