Dear Sirs, I'm having some difficulty to understand this error showed during PTM neighbor file process. Would it be caused by mesh size or geometry configuration? Please, I'd appreciate any help with this problem. Thanks, Taoan PTM Version 2.0 Build 060 (28/Jan/2011) Run start: 2011/09/30 12:37:44 Reading program control file... Reading ADCIRC mesh data... Reading boundary data... Creating closed boundary element list... Creating open boundary element list... Reading sediment data file... Opening hydrodynamic data file... Computing areas of elements... Neighbors file corrupted >&