Hi all,
I get the same error, 5566 error occurred accessing data source, but only for my test user, SPTest1. My situation is a little different but essentially the same - I have a custom workflow that uses an InfoPath form to edit the Task. When user clicks the Task, they get my custom IP form. The IP form is using the GetUserProfileByName web service using the "no code" method described in a different blog (edit the text box properties, and add a function to the Default Value, Value box, etc).
None of the posted suggestions has worked to resolve the 5566 error, I've searched high and low on Google, MSDN forums, everywhere. My other user account is the machine administrator account (virtual machine environment so I can test stuff like this), and it does not get the error. I'm running MOSS on WinServer 2003, IE7. If I'm logged in to the machine as administrator, it works. If I change the user login in IE only, to SPTest1, it fails with the dreaded 5566 error. If I log on to the machine as SPTest1, it fails no matter which SP user account I log into via the browser, even if I change SP user to my administrator acct., it still fails. I'm at a loss, don't know where to turn, I've done almost all the things the postings and blogs say to do: turned off anonymous access in Central Admin, bumped up the size and timeout settings in Cent. Admin, my InfoPath form is running with full trust, etc.
Any help is greatly appreciated,
KevinHou