Oakland Radio Communication Association
There's another screen similar to the last PARTIALS window we showed you. This one is activated by F12 and is also labeled PARTIALS. The difference is the in the first window said "Log Only Checked" at the bottom. This one says "Both log and MASTER.DTA checked". Here are screen shots of both:
The MASTER.DTA file contains the callsigns of many know contestors. In another type of contest, this information could be valuable. For Field Day, it's probably just a lot of excess clutter, so I'd recommend sticking with the window called by F8.