diff --git a/CMS_SC/Collaudi.aspx b/CMS_SC/Collaudi.aspx
index bba7f7b..548672b 100644
--- a/CMS_SC/Collaudi.aspx
+++ b/CMS_SC/Collaudi.aspx
@@ -76,7 +76,8 @@
                 <asp:Button runat="server" ID="btnRemSetMis" CssClass="btn btn-block btn-danger" Text='<%# traduci("btnRemSetMis") %>' OnClick="btnRemSetMis_click" OnClientClick='<%# SteamWare.jsUtils.getCBE("confermaDel") %>' />
               </div>
               <div class="col-4 fontSmall">
-                <asp:Button runat="server" ID="btnShowHideHist" CssClass="btn btn-block btn-warning" Text='<%# traduci("btnShowHist") %>' OnClick="btnShowHideHist_Click" />
+                <%--2018.02.21 nascosto x nonfare confusione con fasi/rev--%>
+                <asp:Button runat="server" ID="btnShowHideHist" CssClass="btn btn-block btn-warning" Text='<%# traduci("btnShowHist") %>' OnClick="btnShowHideHist_Click" Visible="false" />
               </div>
             </div>
           </div>
diff --git a/CMS_SC/Collaudi.aspx.cs b/CMS_SC/Collaudi.aspx.cs
index 2f84b5d..179cb50 100644
--- a/CMS_SC/Collaudi.aspx.cs
+++ b/CMS_SC/Collaudi.aspx.cs
@@ -238,16 +238,21 @@ namespace CMS_SC
     /// </summary>
     private void fixControls()
     {
+      string faseAct = "";
       // prendo idxMacchina + fase e calcolo/salvo revisione!
       try
       {
-        var riga = DtProxy.man.taVSR.getByDF(IdxDossier, Fase)[0];
-        Rev = riga.value;
+        var rigaRev = DtProxy.man.taVSR.getByDF(IdxDossier, Fase)[0];
+        Rev = rigaRev.value;
+        var rigaED = DtProxy.man.taED.getByDossier(IdxDossier)[0];
+        faseAct = rigaED.FaseAct;
       }
       catch
       { }
       savePar("ddlRev", Rev.ToString());
       mod_StatoCollaudi.Rev = Rev;
+      // verifico se sia FASE ATTIVA altrimenti NON permetto editing in collaudi...
+      mod_collaudi.editEnabled = (Fase == faseAct);
 
       // sistemo buttons
       btnShowHideHist.DataBind();