I have a client who would like a drop down list () in their add new item form to be a ComboBox.. The stupid thing is, it used to be a combo box but now its a drop down box, The difference being you cant write anything in the drop down box (making it search easier)..
I think it may be an Browser issue how it displays but I haven't upgraded my browser and I use IE11..
Is there anything I have done in sharepoint that would have changed the way lookup fields are rendered when adding new items?