Yes, the Component Manager will be discontinued soon. If you are having problems:
Please make sure that you are running the most recent version, which is located at: http://storage.stardock.com/files/stardockcentralrc1.exe
Then, close and reopen it to run the auto-update feature to make sure that it is the most current version.
Next, go to Tools>edit Stardock.net account
Make sure that the password field is filled in with the correct password. If it is not filled in, or you are not sure if it is correct, please go to: https://www.wincustomize.com/index.asp?cmd=SENDPW and use the lookup to have your password emailed to you.
Other reasons why it won't login:
1) you are using a different email address than what you registered with.
2) the nick that you are trying to register with is already taken and SDC is giving you an incorrect error.
3) you are using a firewall, proxy or ad blocker that is interfering.
4) you did not complete the email confirmation during the registration process