>>>txtPhone.Format = 'RT'
>>>If the data is filled in programatically, it works fine. However, if
>>>it isn't, or if I blank out the data, I can't type into the field.
>>>What incredibly obvious thing am I missing this time?
>>I guess, it works Ok with Format="R"?
>
>Yes, it works just fine. Is this documented somewhere, or is it a "try it until
>you get it right" type of thing? I checked the MSKB first, but came up dry...

I think it's one of many undocumented features :)