You will have to put a ON/OFF switch in the channel to enable or disable %msgscreen

Code:
  [color:red]
ON *:OPEN:*:?: { 
  if ( %msgscreen == ON ) {
    echo -a 1 »14»15» 12Msg Screen: $nick is trying to msg you 14(2 $+ $strip($1-) $+ 14)
    beep 5 50 
  }
}
ON *:TEXT:*:?: { 
  if ( %msgscreen == ON ) {
    echo -a 1 »14»15» 12Msg Screen: $nick is trying to msg you 14(2 $+ $strip($1-) $+ 14)
    beep 5 50 
  }
}
ON *:ACTION:*:?: { 
  if ( %msgscreen == ON ) {
    echo -a 1 »14»15» 12Msg Screen: $nick is trying to msg you 14(2 $+ $strip($1-) $+ 14)
    beep 5 50 
  }
}
  [/color]