I had a time when this was happening to me in 10.4.x and the solution was the same as the one you got from the Apple Discussion forum......Login Items
See the answer you have at https://discussions.apple.com/message/22689543#22689543
Did it work for you?
I have an iMac and just upgraded to Mountain Lion. Ever since, when I start up, I get this message:
"Enter your name and password to connect to <address>. Connect as Guest/Registered User." And then there's a name and password field.
The address in the connect-to line is a shared disk address from years ago that I haven't connected to in a long time.
Question is, how do I find the script/program where this is being launched at start-up? I've tried doing a search for pieces of the address (it was an Egnyte address), but to no avail.
Many thanks in advance, Annette