InfoPath Dev

I have an 8 person team using a Access Database to pull Data from to populate our form. 7 can access the form 1 can not. All systems have the same setup, software. same os, all up to date.

I've reattached the data connection as many ways as I can think.

 Using Office 2010

Any ideas would help greatly.

 I'd see if it was the user or the machine first, have the user who can't connect log onto a machine belonging to a user who can - still no access? Or does it work now? If it works, that lets you know it is the machine and you can get to looking there - I'd recommend IE settings first....