check your Npc_Types table for min dmg and max dmg. If they arent set (or set to zero), then check with the person that is releasing the code to you. We do NOT support software other than the official code released by the eqemu dev team. If you got it from any site other than the eqemu download section (
http://prdownloads.sourceforge.net/eqemu/) then it is not official. Telmet takes our code, makes changes to it, and releases it on his website. Maybe one of his changes caused that bug, but talk to him if you downloaded the emu from his site.