Hello All, i am brand new to this site! pleasure to meet everyone. I got and installed a BLP-840 a few weeks ago and the navigation system needs a card, i have an sd card but im confused on what software i need. People where throwing out some terms like "icelink" and "igo8" which i dont know and haven't been able to find. also something about a firmware update and blue r style background? Any help would be appreciated thank you all much have a great day.