My cinema 4d doesn't show anything when i open it?

If Cinema 4D doesn't display anything upon opening, it could be due to several issues. First, try resetting the preferences by holding down the Ctrl key (or Cmd on Mac) while launching the software. Ensure your graphics drivers are up to date, as outdated drivers can cause display issues. If the problem persists, consider reinstalling the software or checking for compatibility with your operating system.