> I've attached the files you said me.
My suspicion was correct. You have configured a very short 2 second sample rate.
This results in relative large dives of about 14K each. Since the Geo 2.0 has
only 64K of memory, it can't store more than 4-5 dives.
If you change the sample rate to a larger value (e.g. 15, 30 or 60 seconds),
you'll be able to store more dives. The only alternative is to download your
dives more frequently.
Jef