Usually don't run through caps for graphics. There is separate graphics page, similar thenthe position page to run graphics. Turn on machine lock and dry run, then cylce through. The mouse nipple will allow you to move the picture around, and holding a button on the mouse pad and using the mouse will allow u to zoom.
Z axis can be set several ways. There is a gauge block set up page to automatically comp for your setting block.
I have personally never used g43 for setting tools. I just use the quick mdi functions and call whatever tool, then bring down to my set block and hit calc z. Sets the length from machine home. There are many other ways on the maps to do it, I'm no expert on set up and programming. I just fix them.