A fellow cacher and I both use the 64st to cache with. She has had this happen several times and I have had this happen once. We will get out in the field and all will be going fine when al, of a sudden the GPS will say, no caches to display. You must download caches ..... We both have downloaded the caches from GSAK and have no idea what is going on, but when you are hours away from home, you are in deep as far as caching is going. Anybody have any idea what is going on? Thanks for your help in advance!