[jimmythegreek]

a good rule of thumb is to use 1 scroll tick for each half mile an hour on side imaging. so trolling at 1.5 mph use scroll speed 3. on regular 2d its 1 for 1 as a general rule. while anchored max ping is preferred just like ice fishing. all the scroll speed does is show you the returns either faster or slower. doesnt change the units function or the internal software just changes the shape of rocks/bottom, the slower scroll speeds will elongate things.

chris it sounds like you either need to check w another units transducer to see if it is your ducer, or at the least check your software version and update it to latest, its easy