On level 8, Empire of Magic locks up after sending Kua to the school with the message “unknown variable:GKUAROUND!”
Solution: Download and install the following patch: EOM_Patch.exe - Released July 01 2003
Note: You can use your saved game data with this patch, but need to restart a saved game from level 7 (not level 8!). As a bonus, the patch also adds a new multiplayer level.