Hi again

Processing options I have enabled are:
calculate Bo, Credits on invoices, Edit invoiced orders,
Edit Line Extension, allow printing of on hold orders,
allow order for on hold customers, always use special price.
calculate tax detail line.

Printing I have:
direct invoice
misc charges last (I tried to turn this off made no difference still get error msg)

I get an error immediately editing a misc charge also like you've mentioned. So Yes same Timing as yourself.

I can't recall now what exactly I was doing when I thought I received the msg while using the down arrow on the tax codes but I may have been mistaken since I don't seem to get this error when doing that now. I may have been trying to get into the misc charge to edit the tax code and then got the error. When I said editing the amount I did mean editing the misc charge so I could edit the amount.

The main problem is trying to edit a misc charge itself without other items on the invoice. Thanks for looking this, Treasure