Hi Troy0118,
You may be out of luck if you want automatic formatting. You could create a string column in your Access DB that has the desired format and use that as your display field. Another option is to manually edit the xsl but I don't know if that will work. The way to try is to add the appropriate date format to another field. Extract the source files and look at what InfoPath adds for that field. Copy that to the dropdown control. Like I said, not sure that will work and it may be easiier just to create a display column that you use.
Patrick Halstead
Project Manager at Qdabra