Order Status Problem: 100% coupon is not setting desired status

[LissaE]

I've read through as many threads as I could find, and I don't understand why I am having the following issue lol

I have my order statuses set to the following:

Pending
Processing
Completed (default)
Reset

With completed as the Default....I have only two payment modules installed, Paypal IPN and freecharger...both of those are set to use Completed

Nowhere in either payment module is set to use Processing, yet every time I have an order using a discount coupon (so far these are 100% coupons) goes straight to Processing Status

I've looked in the shipping and order totals modules and I cannot find anywhere that's triggering this....can anyone shed any light on this?