Trip Computer reset
Roger,I use the eTrex Vista.When you reset all or some of your data on the Trip Computer page, your waypoints are unaffected AS LONG AS YOU DON'T CHECKMARK "DELETE ALL WAYPOINTS." When you reset the Trip Computer data, you can selectively choose what is reset, including waypoints. I typically DON'T delete anything below "Reset Max Elevation." I retain the Track Log, because I like to review it later, but I reset everything else above that. I eventually delete tracks, but do so through the Main Menu, Routes option.I will plot courses on my eTrex in conjunction with my charts. I figure out lat/lon from the chart, pan on the Map page to those coordinates (they are displayed just above the map itself), then mark the waypoint, providing a suitable label. You can relabel by highlighting the name (it always starts out as a number) & clicking on it, then using the little keyboard display to input the name. The character space is limited so you have to be creative some times. Also be sure to click on OK when you're done with relabeling, then OK again (in the lower right corner) to save the waypoint.I create Routes through the Main Menu, using the waypoints I created earlier. You can also create waypoints while creating routes, but that's a more involved explanation!I don't do any plotting on my desktop computer, then download to the handheld because, first & foremost, I'm pretty sure my Mac isn't supported!In practice on the water, I use the trip computer to keep track of distance traveled, maximum speed, and such & use that data for my log entries. I use it for navigating Routes I've made earlier, displaying either the Map or Navigation pages, though mainly the former. We have just started sailing our '93 23.5 these past 2 weekends & the PO put in many nice additions, including a small arm that swings out from the starboard bulkhead into the companionway on which I made a bracket for the eTrex. However, it's a bit more distant from where I've been sitting, so I've started to use the Big Number display on the Trip Computer so I can see the speed display better. As I'm getting to know Grasshopper, I'm experimenting with how to maximize speed. I'm a statistics nut, so I would prefer the additional input the Small Display provides, but if I can't read it, what's the point!Feel free to post other questions, but Richard's suggestion to breakout the manual is a very good one.