>>>>The page then displayes properly.
>>>>
>>>>Do you know what may be the problem?
>>>
>>>Does the form have a javascript WebForm_DoPostBackWithOptions() method?
>>
>>I assume it does. How exactly can I tell or test? I believe it's a master page for the website.
>>
>>BTW, if I try a different login/password combination (I just tried), the page works just fine and doesn't give me the same error.
>>
>>May I please give you an exact URL in private so you can see for yourself?
>
>Sure. But pls include examples of login data that work and that do not.
>Also it's end of play here for today so I won't get to look at it for a few hours....
>Best,
>Viv

Thanks, Viv. I may do it tomorrow as well, because I want to work on something else quickly.

See my other question, please.