diff --git a/src/balance.cpp b/src/balance.cpp
index dcbbf665f8..cf378766c8 100644
--- a/src/balance.cpp
+++ b/src/balance.cpp
@@ -488,14 +488,16 @@ int *Balance::bisection(int sortflag)
   rcb->invert(sortflag);
   
   // NOTE: this logic is specific to orthogonal boxes, not triclinic
-  // NOTE: check this: insure comm->rcbcut will be exactly equal to sub-box boundaries it touches
+
+  // store RCB cut, dim, lo/hi box in CommTiled
+  // cut and lo/hi need to be in fractional form so can 
+  // OK if changes by epsilon from what RCB used since particles
+  //   will subsequently migrate to new owning procs by exchange() anyway
+  // ditto for particles exactly on lo/hi RCB box boundaries due to ties
 
   comm->rcbnew = 1;
 
   int idim = rcb->cutdim;
-  //double split = (rcb->cut - boxlo[idim]) / prd[idim];
-  //comm->rcbcut = boxlo[idim] + prd[idim]*split;
-
   comm->rcbcutfrac = (rcb->cut - boxlo[idim]) / prd[idim];
   comm->rcbcutdim = idim;
 
diff --git a/src/input.cpp b/src/input.cpp
index 65f8d6c19a..785929bb21 100644
--- a/src/input.cpp
+++ b/src/input.cpp
@@ -733,7 +733,7 @@ void Input::ifthenelse()
   // must substitute on copy of arg else will step on subsequent args
   // bound and execute "elif" or "else" commands
 
-  while (1) {
+  while (iarg != narg) {
     if (iarg+2 > narg) error->all(FLERR,"Illegal if command");
     if (strcmp(arg[iarg],"elif") == 0) {
       n = strlen(arg[iarg+1]) + 1;