diff -r 6ed9073ed191 src/industry_gui.cpp
--- a/src/industry_gui.cpp	Sat Dec 06 11:20:03 2008 +0100
+++ b/src/industry_gui.cpp	Sat Dec 06 11:20:27 2008 +0100
@@ -647,7 +647,7 @@
 		Industry* i = GetIndustry(this->window_number);
 		int line = this->editbox_line;
 
-		i->production_rate[line] = ClampU(atoi(str), 0, 255);
+		i->production_rate[line] = ClampU(atoi(str) / 8, 0, 255);
 		UpdateIndustryProduction(i);
 		this->SetDirty();
 	}
diff -r 6ed9073ed191 src/lang/english.txt
--- a/src/lang/english.txt	Sat Dec 06 11:20:03 2008 +0100
+++ b/src/lang/english.txt	Sat Dec 06 11:20:27 2008 +0100
@@ -1369,7 +1369,7 @@
 STR_RAIL_REFIT_TO_CARRY_HIGHLIGHTED                             :{BLACK}Refit train to carry highlighted cargo type
 STR_RAIL_CAN_T_REFIT_VEHICLE                                    :{WHITE}Can't refit train...
 STR_CONFIG_PATCHES_SERVINT_ISPERCENT                            :{LTBLUE}Service intervals are in percents: {ORANGE}{STRING1}
-STR_CONFIG_GAME_PRODUCTION                                      :{WHITE}Change production
+STR_CONFIG_GAME_PRODUCTION                                      :{WHITE}Change production (multiple of 8)
 
 TEMP_AI_IN_PROGRESS                                             :{WHITE}Welcome to the new AI under development. If you encounter problems, take a screenshot and post it in the forum.
 TEMP_AI_ACTIVATED                                               :{WHITE}Warning: this new AI is still alpha! Currently, only trucks and busses work!