Expected close date no longer?

Does anyone know if the ability to use the field "QuoteHed.ExpectedClose" was
removed in 9? I was able to re-enable it on the Quote form but when trying to
actually use it, it won't let me enter anything. It has been a while since I've
done some customization. Maybe I'm just doing something wrong or is this field
now a distant memory? We're in 9.05.602A. Thank you in advance.