Hi Bruce, Here is the command line and the output.
mris_flatten -1 -w 0 -distances 20 7 lh.occip.patch.3d lh.occip.patch.flat
MRISread(lh.occip.patch.3d): could not open file No such file or directory mris_flatten: could not read surface file lh.occip.patch.3d No such file or directory