I am defining a system of equations with each equation being defined in the form "eq1 = 5x+6 == 0".  When I use the double equal signs and enter anything directly after them, the display of the double equal signs is changed to a slightly longer than usual single equal sign.  The display settings I am using now are the default for Mathematica 9.0, so I hav no idea how to change the appropriate display settings.  How can I change the display settings so that the double equal signs are displayed as double equal signs? 

Thanks,
Allen