Why connect always has a RED-X?

I am happy with   pgAdmin  and I'm using it for over a month. One question;

I have created a "Connection to Server" named "Test1" with no problem. 
Now whenever I start  pgAdmin,  there is always a BIG RED  X  on top of  
"Test1".  When I CLICK on "Test1", the screen displays the contents, no 
problem.

I am just curious about the RED  X.  Is there an error or it is just how 
it is?