Explored maps turn black after install EQ2MAP

[Ziltus]

Eg, stinking sands, MD etc. I've already explored the whole map except those places which is inaccessible. H/w, all these maps turn black after installing EQ2MAP, which I gotta re-explore.

Today I clear all my UI to solve the zone lagging prob and add them back one by one by just copying individual xml files (ie copy eq2ui_mainhud_map.xml from the exsting UI folder to the new one), the maps turn black again as if I nvr explore them.

Anyway to solve this prob instead of re-exploring all these zones again? Thanks.