After creating an Invoice (only sometimes) from a Sales Order - The Sales Order stays in there as if it wasn't Invoiced, but it was.  I don't want to "Delete" the Sales Order after Invoicing, but I just can figure it out, how do I "FIX" this? -   I am using the version: QuickBooks Enterprise Solutions... Retail 15.0 - if this will help...

...after following your advice steps... ...these are the screen shots... ...it's still not working.   FYI - this isn't the only "Customer" this happens to.  I so appreciate your help!  - Thanks!