For your convenience, here is a list of common issues for FirstClass.
The Helpdesk has created a repair utility to fix a number of common issues. Simply download and run the Repair utility to fix your issue.
Back
If you receive an error stating that "The user ID or password is not valid" it could mean one of two things:
This will happenswhen your FirstClass does not know where the DSBN server is.
Enter your username and password on the login screen and try connecting.
This will occur when your FirstClass setting file has become to large.
If you have gone through the above items and still cannot login you can try one of the following: