I looked in the error log
"[Oct 27, 2005 - 19:13:37] Messages while processing 'Resource/Themes/Civ4.thm'
Error : File - ('Civ4Theme_Custom.thm', Ln:4910, Col:47) Could not load bitmap 'Civ4/HUD/city_titlearrows.tga'
Error : File - ('Civ4Theme_Custom.thm', Ln:4918, Col:47) Could not...