We have the same mb
Make sure Warband is not running.
In the start menu, select "Computer"
Open your hard drive (i.e. "Local Disk (C
")
Open "Program Files (x86)" folder
Open "Steam" folder
Open "steamapps" folder
Open "common" folder
Open "mountblade warband" folder
Open "Modules" folder
Open "Native" folder
Right-click on "module.ini" and select "Edit"
This should open notepad with some confusing text.
Open the Edit menu (top of the page) and select "Find"
Select the following line by highlighting it, right click (while the text is highlighted) and select "Copy"
disable_moveable_flag_optimization
In the "Find What" dialog box, right-click and select "Paste"
Make sure what you paste matches "disable_moveable_flag_optimization"
Press "Find Next." This should bring you to the bottom of the document and highlight the text.
The line will read:
disable_moveable_flag_optimization = 0
Change the line to read:
disable_moveable_flag_optimization = 1
Save the file, and start the game.
Good luck!