Unfortunately, these steps will result in a fresh installation of NinjaTrader without any of your prior settings and will need to be reconfigured from scratch. If you need further information on how to back up these settings to bring into the new installation, please l...
part of the NinjaTrader database for all available data providers (these are not guaranteed to work with IB as they may be specifically mapped to another provider) and selecting an instrument> edit will bring up the window where the symbol mapping can be added ...