QuickCreate Form deleted, but system still trying to load it

An entity in my system had one QuickCreate form which was working beautifully.  I opened the form in the editor and performed a SaveAs, then went back out and deleted the original one.  A form has a subgrid to this entity and when clicking it's + sign I'm getting the error (abbreviated):

<InnerFault>

   <ErrorCode>-2147220969</ErrorCode>

   <ErrorDetails xmlns:d3p1="schemas.datacontract.org/.../System.Collections.Generic" />

   <Message>systemform With Id = b459fa28-1288-4a9c-b5d7-2d11573cb0c9 Does Not Exist</Message>

   <Timestamp>2015-11-05T23:55:57.8801207Z</Timestamp>

   <InnerFault i:nil="true" />

   <TraceText i:nil="true" />

</InnerFault>

1. I've deleted the subgrid and re-added it; thinking maybe it was pointing to the old QuickCreate form.
2. I've turned Quick Create off, navigated to the Subgrid and created a record from it without QuickCreate, then went back and turned Quick Create back on.
3. When I go back into the Quick Create Form in the Form Editor the name displayed is the name of the old one; not the name displayed from the list of forms.

HELP!~  I have a demo of the system tomorrow and need to get this fixed.  Lesson learned:  NEVER mess with your system the day before release/demo.