InfoPath Dev

I created a 2010 Infopath list form and it is working ok, but when I click "Customize Form" button in SP 2010, when the form opens in InfoPath there are a few buttons that do not show (they dissappeared althogether). Again, the buttons show and work in SP, the rules for those buttons are still there in Infopath if I click Data/Rule ...

I created an 2010 Infopath list form and published it into Sharepoint 2010. When I open it I can edit all the fields; however, another person cannot view or edit the Person/Group Picker field (the rest of the fields work fine for her). The rules on this field are the same I have for the other fields, so this is not the problem. Do you ...