I've just tried launching ADOM 1.2.0p8 (Windows) on Windows XP and when I try to create a character with my desired name it gives out the following message:

The name 'Enivid' is already in use. Try another name.

The ADOM folder is empty (safe for the game executable), so where does it look for a save file with that name?

EDIT: Forgot to mention that when I am trying to restore a game, there are no save files available.