Help from the VBA editor - about, view the VBA version number is 7.1

Create a user form, put a command button, set the caption property,

Set to Command (& amp; B), run time, the word is the Command button (& amp; B), B without the underline, Alt + B is invalid

Set to Command (B), set Accelerator properties for B, to run below the letter B with an underscore, Alt + B effective

Set to Command, set Accelerator properties for B, to run all the letters are not underlined, Alt + B effective

This is how to return a responsibility? Please answer