Helix 7 screen jumping

[geo315]

my helix in graft mode not flasher mode and the screen jumps around .  I use the zoon 2x on the left and the entire column on the right.  It does not do it all the time. Any ideas?  Geo.

[davearnold5511]

I get a little twitch every once in a while, especially on flasher screen when it is near the limit of the depth range to where it wants to go the the next depth range. Don't think it's a hardware issue, but if it is keep us posted...

[geo315]

I get a little twitch every once in a while, especially on flasher screen when it is near the limit of the depth range to where it wants to go the the next depth range. Don't think it's a hardware issue, but if it is keep us posted...

Will do.  I like the graf mode better. It seems to be more detail.  The flasher is instant but mine seems to be huge marks and is hard to tell true fish marks from stuff  floating by.  The graf mode shows the trail, makes it ez'er for me. G.