Index: trunk/psLib/src/image/psImageErrors.dat
===================================================================
--- trunk/psLib/src/image/psImageErrors.dat	(revision 1918)
+++ trunk/psLib/src/image/psImageErrors.dat	(revision 1929)
@@ -14,4 +14,5 @@
 psImage_INTERPOLATE_METHOD_INVALID     Specified interpolation method (%d) is not supported.
 psImage_SUBSET_RANGE_INVALID           Specified subset range, [%d:%d,%d:%d], is invalid or outside input psImage's boundaries, [0:%d,0:%d].
+psImage_SUBSET_RANGE_MALFORMED         Specified subset range, [%d:%d,%d:%d], is invalid.  Ranges must be incremental.
 psImage_SUBSECTION_NULL                Specified subsection string can not be NULL.
 psImage_SUBSECTION_INVALID             Specified subsection string, '%s', can not be parsed.  Must be in the form '[x1:x2,y1:y2]'.