Humminbird has released a software update v.4.880 for the 898c SI and 998c SI units. These updates can be found on the Humminbird website under your account
998c SI v.4.880 Download
898c SI v.4.880 Download
Description:
4/5/2010 12:00:00 AM – v4.880 Adds AIS Accessory functionality, Adds Platinum+ 3D features, Adds Video Out support, Improves Chart rendering speed, Improves Start-up/Shutdown speed. Includes general bug fixes and system improvements.