>>What I suggest is you're better to disable or hide the combox during append blank record until the new record is updated or tablerevert!
>
>Although I've figured out how to do what I want, I like your idea of just making it invisible then fixing it when it reappears. Wish I'd heard from you sooner!

Well, you should Disable all controls which can move the record pointer, otherwise if user move the cursor with
those controls by mistakes or by destructive propose, they can complain the application can update wrong record!!

In my application, I add 2 new proc in each entry form.
WhenAdd() and AfterAdd()

WhenAdd proc is to disable all the moving cursor controls and enable some "read-only" control to writable!

AfterAdd proc is the reverse!

So, If user wants to cancel add record or complete add, simply call AfterAdd will do what I wants!!

Besides, I also add a new proc ChgRecord() to handle all code handling to show right value!
In your case, you also need to adjust the combox value to right value if you change the record cursor!

In my application, user can click Top, Previous, Next, Bottom, or type in key to search
(Incremental search in File Section) or Select record in Combox.

So, I did quite a lot of code on those 3 proc to handle all cases!! ^_~

What I suggest to do is to add new proc to form and call it with easy!