Hi Lisa,
I completely agree with John's answer with one caveat. We had a similar situation where the change was from a current fund to an endowment fund. We had to be really clear with the donors who had already given about what moving it to an endowment meant. Since they had expected their gifts to make an immediate impact, we did have donors who were unhappy with that change. Hopefully your situation is just changing from one current fund to another.
Lianna
------------------------------
Lianna Bodzin
Colorado School of Mines
lbodzin@mines.edu------------------------------