Are you seeing portions of the map with the rest black? If so, that's probably just the fog of war at fault. What you could try to do there is to copy the map files (named map_adv04_dun_endless_0 through 4) and rename the copies with fog_ in front of the name (e.g., fog_map_adv04_dun_endless_0).
If you're seeing no map at all, check your EQ2/UI/(Your UI Name)/Images folder for the map images, they should be named map_adv04_dun_endless_0 through _4.
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