Yep. Go to your Rome Total War\EB\prefernces folder open the file called "preferences.txt" do a search for "DISABLE_ARROW_MARKERS" and set that one to "TRUE" as opposed to the default "FALSE". You can also turn off banners by switching "SHOW_BANNERS" to "FALSE". You can turn of the weird glow in the dark GFX effect called "UNIT_EXPERIENCE_UPGRADE_EFFECT" by switching to "FALSE" there as well. Doing this only removes the retarded glow in the dark effect; and it doesn't effect gameplay in any other way.