I recently bought a 998 and I can not get the screen to sharpen up. It seems like for some reason every little detail seems to be blurry and not crisp looking at all. Everything I see on 2d sonar seems to look like just blobs. I am running the orginal software because I have heard bad things about the recent upgrades. My settings are as follows:
Beam select: 200/83
Surface clutter: 4
Mode: clear
Fish I'd: on
Fish id sensitivity: 7
Rts window: narrow
Color: orginal
Bottom presentation: structure id
Zoom width: narrow
83 hrz sensitivity: 2
Noise filter: low
Color bar: on

This is a transom mounted transducer and I believe it is in a correct spot. My water color of my lakes is usually dirty to staind water clarity. Any suggestions would be much appreciated.