Arduino Mega R3 - reset button

Hi

I have brand new Arduino Mega R3. I have some problem with reset if I turn on Serial Monitor Arduino does not reset, Arduino doesn t reset if I pushed reset button manually. I see that led won´t flash if i pushed reset.

Reset En should be connected ??? I have it connected.

Lots more detail required...
Sketch...schematics etc. etc. etc.

Oh and your picture seems to have failed !