When adding an account manager, using a project URL does not halt gracefully.

[JacobKlein]

Tools -> Add project or account manager... -> Use account manager -> Paste a project URL like ​http://isaac.ssl.berkeley.edu/alpha/ -> Next -> Agree to terms if applicable -> Identify account for the project -> Receive the following error:

Failed to add project
An error has occured;
check the Event Log for details.
Click Finish to close.

Event log says:
3/31/2011 !12:13:48 PM |  | Fetching configuration file from http://isaac.ssl.berkeley.edu/alpha/get_project_config.php
3/31/2011 !12:13:56 PM |  | Contacting account manager at http://isaac.ssl.berkeley.edu/alpha/
3/31/2011 !12:13:57 PM |  |  error: file not found

Notices (on 6.12.19) also throws the error as a notice:
Notice from BOINC
error: file not found

I propose this:

When the user is in "add account manager" mode, and first contact with the URL indicates that it is not capable of serving as an "account manager", the wizard should stop. It should not try to add it as a project. I should not have even gotten to terms of use page, or the Email address and password prompts.

[JacobKlein]

Small correction: The error dialog actually says
Failed to add account manager

Still, it should have halted earlier, and gracefully.