C:\Program Files\Chimera\bin\mscalc.exe 1.400000 2.000000 1
Calculation of some surface components failed (code 5).
Falling back to single-component calculation.
C:\Program Files\Chimera\bin\mscalc.exe 1.400000 2.000000 0
Surface calculation failed, mscalc returned code 5
Two pdb files that I've been having problems with are 1JFF and 2P4N.