You try to connect to an SQL server, you conect but you cann't see the daabase folder. Try this steps
1) Bring Object Explorer Details window by selecting View --> Object Explorer Details in menu (or hitting F7)
2) In Object Explorer window click at Databases folder
3) In Object Explorer Details window right-click at the column header and deselect Collation
4) Refresh Databases folder.
The problem (explained) and the solution looks like this:

f61c0767-190a-4b2f-9ade-d0b5748f516a|0|.0