Another thing I forgot that I "hate" about the 800. Input a route, go on a ride, get off course, it beeps at you . . . but does not re-calculate the route to get you back on. Zoom out to see street grid for context and to see how far I got off course, and the minor streets disappear. Very frustrating. I hope it is something that I didn't "turn on", and the unit does have the capability to guide one back to the current route.

It's a configurable display field. When you go into the screen display configuration mode, you can select how many fields are displayed on a screen, and you can also select which parameter is displayed in each field on that screen. I have mine configured for a default screen which shows 'distance', 'speed', 'cadence', and 'heart rate'. The next screen shows a whole bunch of interesting data, but not something that I want to watch as I'm in motion. That screen shows stuff like 'time', 'time of sunset', 'average speed', 'climbing feet', 'altitude', etc. Interesting information, but not something that needs to be constantly referred to. The next screen is a routing screen. That has stuff like 'time to next turn', 'distance to next turn', 'direction of next turn', 'remaining distance', etc. My last screen is the map page. If a route is loaded/followed, it will appear in a bold cyan line. It also displays a 'direction to turn' arrow when you get close to a turn in the route.

The way I found what was available is to just configure a screen, or create a new screen. First with the number of fields to display. Since I don't wear glasses when riding, (or anytime, even though I should), I played with the number of screens to see what would be the easiest to read while riding. Large numbers with fewer fields is what worked for me. Then, I had to decide what was the most important parameters to display on that screen. Just scroll through the parameter list to find the fields you want/need. I think I ended up flipping fields around to display something at the top instead of in the middle or bottom. I'm thinking of adding one more field to my main screen, 'gradient'. That could be useful when climbing.

The, what I call the, recap screen has a lot of fields and I just changed each one to display stuff that I want to know about a ride, (after I finish it). Again, I set the number of fields to be the maximum and just scrolled through the list to fill up the fields with what I thought would be useful to know. Tried to put them into some type of logical order.

Just play with the thing. You can't hurt it. Keep the screens you now have, (so you won't mess them up). Create a new screen, then just play around with the number of displayed fields and what parameters the field should show.