Index: /issm/trunk-jpl/src/m/classes/geometry.js
===================================================================
--- /issm/trunk-jpl/src/m/classes/geometry.js	(revision 23720)
+++ /issm/trunk-jpl/src/m/classes/geometry.js	(revision 23721)
@@ -30,5 +30,5 @@
 
 			if ((solution=='TransientSolution' & md.trans.isgia) | (solution=='GiaSolution')){
-				checkfield(md,'fieldname','geometry.thickness','timeseries',1,'NaN',1,'Inf',1,'>=',0);
+				checkfield(md,'fieldname','geometry.thickness','timeseries',1,'NaN',1,'Inf',1);
 			}
 			else{
Index: /issm/trunk-jpl/src/m/classes/geometry.m
===================================================================
--- /issm/trunk-jpl/src/m/classes/geometry.m	(revision 23720)
+++ /issm/trunk-jpl/src/m/classes/geometry.m	(revision 23721)
@@ -54,5 +54,5 @@
 
 			if (strcmp(solution,'TransientSolution') & md.transient.isgia) | strcmp(solution,'GiaSolution'),
-				md = checkfield(md,'fieldname','geometry.thickness','timeseries',1,'NaN',1,'Inf',1,'>=',0);
+				md = checkfield(md,'fieldname','geometry.thickness','timeseries',1,'NaN',1,'Inf',1);
 			elseif strcmpi(solution,'LoveSolution')
 				return; 
Index: /issm/trunk-jpl/src/m/classes/geometry.py
===================================================================
--- /issm/trunk-jpl/src/m/classes/geometry.py	(revision 23720)
+++ /issm/trunk-jpl/src/m/classes/geometry.py	(revision 23721)
@@ -46,5 +46,5 @@
 
 		if (solution=='TransientSolution' and md.transient.isgia) or (solution=='GiaSolution'):
-			md = checkfield(md,'fieldname','geometry.thickness','NaN',1,'Inf',1,'>=',0,'timeseries',1)
+			md = checkfield(md,'fieldname','geometry.thickness','NaN',1,'Inf',1,'timeseries',1)
 		elif solution=='LoveSolution':
 			return