@gary, on sql profiler, I see that query executed 4500 times when I open the treeview:

use [(all db from A to Z)]

SELECT

ISNULL((select top 1 1 from sys.filegroups FG where...

Hi, I just found that same issue with profiler, I need to open 4500 databases, and the treeview never finished to open, after a while, I saw that management studio...