If you are using player-created mods and scenarios with the Steam version of Civ 3, you may have noticed that the text is an incomprehensible mess. This is due to the Spring 2015 multiplayer update introduced by Firaxis to Steam users. The update adds a line to the Labels.txt file, on line 86 between "PING" and "Host", which says "UNKNOWN". This extra line throws the text out of balance for mods and scenarios from previous versions.

To fix this, open the Labels.txt file located in the Text folder of the mod you are using. Insert an extra line between PING and Host with the word UNKNOWN. This should correct the issue.