EAs not working. Log shows "removed"

On occation if I try any EA in my MT terminals it will show in the Expert tab "loaded sucessfully" and then immediately "removed".

I did not remove anything. Ea is enabled (has the smiley in the chart window), but just does nothing. Not even the {init} part.

Am I missing something here?

Just one EA with a test code here:

//+------------------------------------------------------------------+
//|                                             Check Connection.mq4 |
//|                        Copyright 2012, MetaQuotes Software Corp. |
//|                                        http://www.metaquotes.net |
//+------------------------------------------------------------------+
#property copyright "Copyright 2012, MetaQuotes Software Corp."
#property link      "http://www.metaquotes.net"

//+------------------------------------------------------------------+
//| expert initialization function                                   |
//+------------------------------------------------------------------+
int init()
  {

   bool IsConnectedValue = IsConnected();
   string IsConnectedValueText;
   if(IsConnectedValue == true)
      {
      IsConnectedValueText = "True";
      }
   else
      {
      IsConnectedValueText = "False";
      }
   Alert ("The return value of IsConnected is ", IsConnectedValueText , ".");
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert deinitialization function                                 |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| expert start function                                            |
//+------------------------------------------------------------------+
int start()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+