1) Take a stuck install of SQ4 Beta 8
2) Go to the Data Manager - Data tab
3) Delete all data there, so that the list will be empty.
4) Click "Add" to re-add data and in the "Add Symbol" window that opens up, there will be a double-listing of "GBPUSD" as the first 2 entries in the "Instrument" drop-down-list instead of "EURUSD", "GBPUSD", etc.. This seems like a temporary sync issue, because if closing and completely restarting SQ4, the list is fine again.
Thank you!