diff --git a/xvaga/xvaga.cpp b/xvaga/xvaga.cpp
index 330b6dfaa..fc9551fbc 100755
--- a/xvaga/xvaga.cpp
+++ b/xvaga/xvaga.cpp
@@ -3671,8 +3671,10 @@ public:
 
 wxThread::ExitCode TIconizeTaskThread::Entry()
 {
-  Sleep(1000);
-  ((wxFrame*)_task_win)->Iconize();
+  Sleep(750);
+  wxFrame* frame = (wxFrame*)_task_win;
+  if (!frame->IsEnabled()) // Il programma e' ancora in attesa
+    frame->Iconize();
   return 0;
 }
 
@@ -3699,9 +3701,11 @@ long xvt_sys_execute(const char* cmdline, BOOLEAN sync, BOOLEAN iconizetask)
   
       exitcode = wxExecute(cmdline, wxEXEC_SYNC);
       
-      ((wxFrame*)_task_win)->Restore();
+      wxFrame* frame = (wxFrame*)_task_win;
+      if (frame->IsIconized())
+        frame->Restore();
       wxEnableTopLevelWindows(TRUE);
-      _task_win->Raise();
+      frame->Raise();
     }
     else
       exitcode = wxExecute(cmdline, wxEXEC_SYNC);