Index: /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/model/plot/processmesh.m
===================================================================
--- /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/model/plot/processmesh.m	(revision 11233)
+++ /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/model/plot/processmesh.m	(revision 11234)
@@ -7,8 +7,11 @@
 %   See also: PLOTMODEL, PROCESSDATA
 
 %some checks
+if md.mesh.numberofvertices==0,
+	error('plot error message: mesh is empty')
+end
 if md.mesh.numberofvertices==md.mesh.numberofelements
-	error('plot error message: the number of elements is the same as the number of nodes! cannot plot anything with model/plot, use matlab/plot instead')
+	error(['plot error message: the number of elements is the same as the number of nodes...']);
 end
 
 if (isempty(data) | ~isstruct(data)),
Index: /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/model/setmask.m
===================================================================
--- /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/model/setmask.m	(revision 11233)
+++ /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/model/setmask.m	(revision 11234)
@@ -1,5 +1,5 @@
 function md=setmask(md,floatingicename,groundedicename)
-%GEOGRAPHY - establish boundaries between grounded and floating ice.
+%SETMASK - establish boundaries between grounded and floating ice.
 %
 %   By default, ice is considered grounded. The contour floatingicename defines nodes 
 %   for which ice is floating. The contour groundedicename defines nodes inside an floatingice, 
Index: /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/model/parameterization/parameterize.m
===================================================================
--- /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/model/parameterization/parameterize.m	(revision 11233)
+++ /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/model/parameterization/parameterize.m	(revision 11234)
@@ -35,15 +35,12 @@
 	me2=struct('message',me.message,'stack',me.stack);
 
 	%rename parameter file
+	me2.message=regexprep(me2.message,[temporaryname '.m'],parametername);
 	for i=1:length(me2.stack)-1,
-		if (strncmp(fliplr(me2.stack(i).file),fliplr([temporaryname '.m']),length(temporaryname)+2))
-			me2.stack(i).file=parametername;
-		end
-		if strcmp(me2.stack(i).name,temporaryname),
-			me2.stack(i).name=parametername;
-		end
-		if strcmp(me2.stack(i).name,temporaryname),
-			%remove parameterize.m error "TemporaryParameterFile" misleading
+		me2.stack(i).file=regexprep(me2.stack(i).file,[temporaryname '.m'],parametername);
+		me2.stack(i).name=regexprep(me2.stack(i).name,[temporaryname '.m'],parametername);
+		if strcmp(me2.stack(i).name,'parameterize'),
+			%remove error (eval(temporaryname);) misleading
 			me2.stack(i)=[];
 		end
 	end
Index: /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/model/extrude.m
===================================================================
--- /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/model/extrude.m	(revision 11233)
+++ /proj/ice/larour/issm-uci-clean/trunk-jpl/src/m/model/extrude.m	(revision 11234)
@@ -58,9 +58,11 @@
 end
 
 if numlayers<2,
-	disp('number of layers should be at least 2. returning initial model...');
-	return
+	error('number of layers should be at least 2');
 end
+if md.mesh.dimension==3,
+	error('Cannot extrude a 3d mesh (extrude cannot be called more than once)');
+end
 
 %Initialize with the 2d mesh
 x3d=[];