I have just recently updated my software from 5.7 to the newest version 6.4. I turned off my readouts and went into SI enhance and turned off the Contour to eliminate the water column. I noticed that as soon as I hit the depth of 60' my screen went all black and once I returned to 59' it would start to show up again. I have my range set at 75 each way and sensitivity at 10 I believe. Is this something that it is new with the new software or what? I thought it was supposed to work in up to 150 of water. Also I believe I have the max depth set at like 150 or 160. Any help, input or info I can get will be much appreciated. Thanks in advance.
Kyle