I try to connect to locally. I choose to save credentials.So,everytime I don't need to enter username,password etc. When I don't have problem,Go to DBA Studio and click on the Database ,it opens up the components underneath that. If there is a problem,the window comes up with login name/password and I don't see the the check for save credentials.If I click connect,It does not do anything.Just hungs there.After rebooting behaves normally.

Thanks.