Hi Robertlipe,
thank you very much. You solved my problem:
"In Settings->Setup Map, there is a tabbed interface. Under Points->User Waypoints, be sure it's set for Auto. "
User Waypoint was set to 50m on my device so I changed to "Auto" and now my "new" Garmin 60CSx shows all geocaches on the map as my old one did. Bingo!!!
That`s perfect, now I can follow a mountainbike track and can see all caches along that track.
That makes me really happy, so thank you!!!