diff --git a/VERSION b/VERSION
index 0cea723e..d69e174d 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-8.3.422
+8.3.423
diff --git a/resis/ResReadSim.c b/resis/ResReadSim.c
index 836b337e..1a6a0026 100644
--- a/resis/ResReadSim.c
+++ b/resis/ResReadSim.c
@@ -901,7 +901,8 @@ ResSimProcessDrivePoints(filename)
     HashEntry	*entry;
     ResSimNode	*node;
 
-    fp = PaOpen(filename, "r", ".ext", ".", (char *)NULL, (char **)NULL);
+    fp = PaOpen(filename, "r", ".ext", (ExtLocalPath == NULL) ? "." : ExtLocalPath,
+			(char *)NULL, (char **)NULL);
     if (fp == NULL)
     {
      	TxError("Cannot open file %s%s\n", filename, ".ext");
@@ -947,7 +948,8 @@ ResSimProcessFixPoints(filename)
     FILE	*fp;
     ResFixPoint	*thisfix;
 
-    fp = PaOpen(filename, "r", ".ext", ".", (char *)NULL, (char **)NULL);
+    fp = PaOpen(filename, "r", ".ext", (ExtLocalPath == NULL) ? "." : ExtLocalPath,
+			(char *)NULL, (char **)NULL);
     if (fp == NULL)
     {
      	TxError("Cannot open file %s%s\n", filename, ".ext");
diff --git a/resis/ResRex.c b/resis/ResRex.c
index e2ad134c..cd738a24 100644
--- a/resis/ResRex.c
+++ b/resis/ResRex.c
@@ -986,6 +986,7 @@ ResCheckSimNodes(celldef, resisdata)
 	    }
 	ResExtFile = PaOpen(outfile, "w", ".res.ext", ".", (char *)NULL, (char **)NULL);
 	if (outfile != celldef->cd_name) freeMagic(outfile);
+	outfile = celldef->cd_name;
     }
     else
     {
@@ -1194,7 +1195,7 @@ ResCheckSimNodes(celldef, resisdata)
 	    }
 	    else
 	    {
-		ResDoSimplify(ftolerance,rctol,&gparams);
+		ResDoSimplify(ftolerance, rctol, &gparams);
 		if (ResOptionsFlags & ResOpt_DoLumpFile)
 		{
 		    ResWriteLumpFile(node);