GamersGate Downloader

I get a wrong user name/password error message when trying to download my DRM free games.
My download speed is low!
Where are my downloads stored?
Failed to open file: Access denied (Error 5) or "Failed to open file: The system cannot find the file specified (Error 2)
"Server did not accept the request (replied HTTP status; 200, expected 206)" message
Error 206. Could not create file because file name is too long.
Failed to sign in: A connection with the server could not be established. Check that the computer is connected to the internet and that no firewall is blocking this program.