I am using XP Home on this ThinkPad.
I click Start, Run and enter ipconfig /all.
When I click Enter, the black command-prompt window opens and closes, all in a flash.
Can any kind person tell me how to put this right ?
No, I did not use any punctuation at all.
However, I have just clicked Start, Run and entered cmd, then clicked OK.
I then entered ipconfig /all, and that gave me what I need.
Thank you for your interest.