Hello! Been lurking and learning for awhile before purchasing my 999 with an iLink Terrova. I have had the boat out several times trying to learn how to use this equipment. Besides not sure what to have my SI settings on for optimal performance I am having an issue with the DI. It seems to work fine on every speed setting I put it on except for 2mph. For some reason my screen shows pixels/snow overlaying the display from top to bottom. Anyone else have this issue or have an idea why or what it's caused by? Brand new unit and is frustrating since 2mph would be my most used setting.