I've been geocaching in a fairly leisurely fashion since the Autumn. I have a Garmin eTrex Vista HCx which has always downloaded geocaches with no problem. This morning I tried to download and geocaching.com said (as normal) that the download had been successful. But it had not - nothing was showing on the GPS unit. I thought it might be a problem caused by putting AVG anti-virus software on the main computer but the same thing is happening on the notebook, which doesn't yet have it.

I've tried all sorts of things to fix this. I happened to have another (new)cable, so tried that. I downloaded the latest version of Garmin communicator 2.9.2.0 onto both the main computer and the notebook. I downloaded Version 3.20 for the eTrex Vista HCx onto the unit itself. Every time, the message is that the geocache has downloaded successfully and every time it hasn't.

Has anyone got any idea what is going on, and what can be done to fix things? I'd be very grateful