setting home limits and display of the software

[teebutch]

My Mach 3 software looks different than what is showing in the videos.  is there a way to change my display to make it look like what is showing in the videos.  My software is the current version but since I am a newbie and watching the videos it is difficult to try to interpolate what is on the video vs what my screen looks like.  on my screen to get to the machine coordinates I have to go to MDI/Corridinates button then it shows it on that screen but there is no "Reference all Home" button to set the corridinates to my machine.  I do have a "DE-Ref all Home" but when I click it nothing happens.  Can someone help out this newbie.  I have attached a screen shot of the display I have.

thanks

butch

[ger21]

View menu, load screens, and choose 1024.set