Does OR 300 cache MAP DATA somewhere?

[Seldom]

Another TYP question. 

I got a nice functioning tan (ff6600) TYP polygon on a sample map, and uploaded the map to both my 60CSX and my OR 300.  It looked OK on both GPSrs. 

Then I decided to change the color to green (006666).  When I compiled everything, and uploaded it, it was green on the 60CSX, but STAYED TAN on the OR 300.

Worse, my test polygon showed up on the OR 300 even after I used Windows Explorer to change the gmapsupp.img to one that didn't have the polygon on it.  The only way I was able to get rid of it was to create the gmapsupp.img with no custom TYP in MapSource and send it to the OR.

[Boyd]

I have never seen my Oregon "cache" anything. Do you have a memory card in the unit? Are you getting confused between a file on the card and one in internal memory perhaps? Not sure what might be happening, but the new firmware could have some oddities I suppose.

Also, on the Oregon you can name your files anything you like as long as they have a .img extension. Will make it easier for you to manage maps this way. That's another possibility... do you still have the old file on the card with a different name? The file name will not be displayed in the map info, only the name of the mapset contained in the file.

[Seldom]

Thanks, Boyd.

Only one gmapsupp.img on the OR 300, and that one on the microSD.  But the other IMG was renamed something like oldgmapsupp.img.  When I erase oldgmapsupp.img the polygon goes away.
However, the color of the test polygon is tan in the OR and green (as intended) in the 60CSX.  Maybe this has something to do with the OR's color background.

Polygon stays tan, even after hill shading is turned off.  Color set to 006666.

[Boyd]

Color set to 006666.

I think that's the devil's color. 

Since the 60csx only has 8 bit color, some of the palette doesn't render the way it should. You can get much more subtle map shading on the Oregon. I don't know if this has something to do with what you are seeing or not.

One thing which confused me on the Oregon when I upgraded to the new software was that all my unused maps started showing up. Like you, I would name files things like oldgmapsupp.img and keep them on the SD card when not using them. All of a sudden all of these files became visible in the Map Info menu after the firmware upgrade.

Have you tried turning off shaded relief (DEM shading)? Since I have the Oregon 400t, the DEM shading exists in the pre-loaded topo maps. I think the Oregon 300 is different, and it probably has a world basemap that contains DEM shading. Can you turn the basemap off in the Map Info? That might make a difference too.

Also, try a screenshot from both the 60csx and Oregon. The actual colors in the image (as seen on your computer) are quite different from what you see on the GPS screen with both of these units.