diff --git a/src/mcom/MSU.c b/src/mcom/MSU.c
index 0bf02ac..a8c4bcd 100644
--- a/src/mcom/MSU.c
+++ b/src/mcom/MSU.c
@@ -956,6 +956,9 @@ int MSUSendData(
 #endif /* !__MPROD */
 
   /* initialize */
+  TSLine[0]='\0';
+  CKLine[0]='\0';
+  SHeader[0]='\0';
 
   tmpSBuf[0] = '\0';  /* tmpSBuf is global (not threadsafe) */
 
diff --git a/src/moab/MNode.c b/src/moab/MNode.c
index 53f35c0..1e42df9 100644
--- a/src/moab/MNode.c
+++ b/src/moab/MNode.c
@@ -5746,10 +5746,11 @@ int MNodeGetLocation(
   int   nindex;
  
   char  tmpName[MAX_MNAME];
+  tmpName[0]='\0';
  
   char *ptr;
  
-  long  Address;
+  long  Address=0;
 
   mhost_t *S;
  
diff --git a/src/moab/MRes.c b/src/moab/MRes.c
index 2e3d56a..7d24b77 100644
--- a/src/moab/MRes.c
+++ b/src/moab/MRes.c
@@ -7137,14 +7137,20 @@ int MResAdjustDRes(
     {
     memset(&ZRes,0,sizeof(ZRes));
 
-    if (CRE == NULL )
-    	CRE = (mre_t *)malloc(sizeof(mre_t) * (MSched.ResDepth << 1));
-    if (ORE == NULL )
-    	ORE = (mre_t *)malloc(sizeof(mre_t) * (MSched.ResDepth << 1));
-    if (NRE == NULL )
-    	NRE = (mre_t *)malloc(sizeof(mre_t) * (MSched.ResDepth << 1));
-    if (JRE == NULL )
-    	JRE = (mre_t *)malloc(sizeof(mre_t) * (MSched.ResDepth << 1));
+    /* changed the mallocs to callocs because there is code below */
+    /* that requires things to be zero'ed                         */
+    if (CRE == NULL ) {
+    	CRE = (mre_t *)calloc((MSched.ResDepth << 1),sizeof(mre_t));
+    }
+    if (ORE == NULL ){
+    	ORE = (mre_t *)calloc((MSched.ResDepth << 1),sizeof(mre_t));
+    }
+    if (NRE == NULL ){
+    	NRE = (mre_t *)calloc((MSched.ResDepth << 1),sizeof(mre_t));
+  	}
+    if (JRE == NULL ){
+    	JRE = (mre_t *)calloc((MSched.ResDepth << 1),sizeof(mre_t));
+    }
 
     DRSize = sizeof(mcres_t);
     }  /* END if (CRE == NULL) */