Recently I was annoyed to find that my Command Window was displaying integers in hexadecimal. I would type "?i" and it would reply with something like "&HA1" and I couldn't figure out how to get back to a normal decimal display.
Eventually of course I figured it out. You can't do it in the Command Window. However, if you open another debugging window such as a Watch window or Breakpoints window, you can then right-click the window and toggle the Hexadecimal Display option. That turns hexadecimal display on or off for all of the debugging windows, including the Command Window (which can't do this itself).