So you are loading your caches as Points of Interest? I'm not familiar with POI loader...
Yeah, I don't know of any way to filter caches once they are on the unit. They all show up in en masse no matter if you put them in the Garmin/GPX file on the unit or on the SD card. You're right, TW, putting them on the SD card doesn't add to the total number the GPSr will accept, so I guess there's no real reason to do it that way.
I create my GPX file with the radio button "Force Use of Geocache Symbols Only" selected and I get actual geocache symbols on my map. Regular caches are green boxes, mystery caches are blue question marks, etc. I used Map Source to create the GPX file for benchmarks so they show up as the old-style brown treasure chest, ala the one the cursor is pointing to on the attached screenshot.
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