If you experience a problem using the DebianInstaller, please first check the errata (either the errata of Debian/Stable D-I or the errata of DI Development version) and DebianInstaller/FAQ for your problem. If it is a hardware problem, see DebianInstaller/Workarounds. If you still have a problem, send us an installation report using the template and a developer will get in touch with you.