I have a strange situation. IT installed SSMS on my laptop and it runs well the first time, connected to my SQL servers remotely etc. But then it\'s frozen. I forced quit an
Fixed an issue which presented the same on my machine today by renaming a entry in my registry:
After some digging there seems to be multiple issues that can produce the same error (Application, settings, registry). This blog entry covers it pretty well: http://www.armedia.com/blog/2012/08/sql-server-management-studio-freeze/
In my case deleteing the SQL server management studio folder under AppData ( c:\users\%userName%Appdata\raoming\microsoft\ ) didn't work.
However I was successfully after deleting / renaming the regisitry entry: [HKEY_CURRENT_USER\Software\Microsoft\Microsoft SQL Server]
(update) Worked out the underlying issue on my laptop - was using additional 2 screens with much higher resolutions which caused windows / SSMS to open up the connect to new data source dialog off all of them. If your using multiple screens try returning to just use the native laptop screen to see if you can find the dialog that SSMS is waiting on your input for.