I mentioned this at the symposium and was told to post so here it goes.  It probably should go under suggestions-- maybe I will post it twice!!
When a deposit is applied to an invoice at the time of posting, the invoice prints with a subtotal of line items, then tax and freight, then deposit applied, and a total for the invoice.  My AR person won't use the apply deposit in the post because she wants a grand total for the invoice, including taxes and freight, to show before the deposit is applied.  I would like to see a total field added that would subtotal all charges, and then apply the deposit, followed by an invoice balance.
 I was hoping I could modify my form, but apparently we cannot add total fields to the form.  That's definitely one for the suggestion box!

Cathy,  
 
Thanks for reminding me!  I also had something along the same lines I was supposed to post!
 
When applying a deposit to an invoice where all items on the SO are backordered,  you can not print the ack or invoice because you have to apply the deposit to the invoice.  However, it will not let you apply $0.00 and if you try to apply enver $.01 it won't let you because everything is backordered.