If nothing happens after clicking the Start button at launcher try the following steps:

- Click the "Check Files" button on the launcher. It will take some time to check all CABAL client files.

- Add CABAL to your Anti-Virus Exception list.

- Add CABAL, GameGuard to your Firewall Exception list.
If you suddenly cannot enter after an update it could be the recent update that changed some Cabal exe's, delete the old exe from the exception list and then re-add the new one. Firewalls and Anti-Viruses know when an exe has been changed and will always attempt to block the new version.

- Turn off any program that could crash with nProtect GameGuard

- Adjust your graphics settings (e.g. anti-sampling on/off; full screen on/off)

- Please up-to-date all your drivers to the latest version.

* If none of above solutions are successful, reinstall the client after a proper uninstall and delete manually the remaining folder of CABAL Online. (C:\Program Files\Cabal Online (US)\)