diff --git a/sicvar.c b/sicvar.c
index 5b8af4c9..ddf27bdb 100644
--- a/sicvar.c
+++ b/sicvar.c
@@ -251,7 +251,7 @@
       {
         return 0;
       }
-      else
+      else if (self->fVal != fNew)
       {
         self->fVal = fNew;
         InvokeCallBack(self->pCall, VALUECHANGE, self); 
@@ -268,7 +268,7 @@
       {
         return 0;
       }
-      else
+      else if (self->iVal != iNew)
       {
         self->iVal = iNew;
         InvokeCallBack(self->pCall, VALUECHANGE, self); 
@@ -285,7 +285,7 @@
       {
         return 0;
       }
-      else
+      else if (self->text && strcmp(self->text, pNew))
       {
         if(self->text)
         {