Hi,
The pub may be a good option as there are a lot of variables. a laptop and cable might be handy. but anyway here's a go at it:
I don't know what you use to view GPX files on your PC - could be Mapsource, Basecamp, Bikehike. A user of any of those can help with specifics of that method (I use Basecamp) All have the facility to upload files from the etrex but I find the easiest way to transfer is to find them and treat them as files on a disk drive and just move them over using Windows to wherever you keep them on your PC, than view them in the gizmo of your choice. The previous advice you had about the track possibly being archived on the Etrex sounds highly likely as the Etrex is set by default to archive at frequent intervals though this can be altered in settings.
Anyway to treat them as files on a disk drive (as mentioned) set the etrex to Mass storage" mode when unplugged from the PC. To do this go to "Setup" then "System" and the bottom choice on the list is "USB mode". This can be toggled between "Garmin" and "Mass Storage". .Select the latter. Turn the Etrex off and plug it in to the pc.
It's screen will eventually display the USB Symbol and the PC will act as if you had inserted a disk or SD card into the computer, i.e. it should appear on the "My Computer" window as a seperate drive, or rather two separate drives - one will be the internal memory and the other will be the Micro SD you have probable installed in the Etrex.
You have two options. You can either open these new "drives" from "My Computer" and see the contents, or more likely the Autoplay function on your PC will have already opened two windows (one for each drive) offering among other things the option to "Open a window to view files).
Open the drives by either route to view the files. You can now drag and drop them around your PC to the place your tracks and routes normally live for viewing in your chosen software. I don't know if you've saved the track with a name so you can recognise it but it may have the default of the Time/date of the ride start or possibly archive time/date. An option would be to copy the whole lot across to the PC, then use your chosen software to open each one and work out which one it is.
A word or two about finding the files on the Garmin:
The internal memory is the one entitled "Garmin eTrex 30" (followed by a drive letter)
The SD card if installed will be the other one probably called "External Drive" (plus drive letter)
To find the tracks the following will generally apply:
In the internal memory Select the "GARMIN" folder, Then "GPX". You will either see the files there or they may be in "ARCHIVE" sub-folder if it has been archived or "CURRENT" sub-folder if it's still active.
To look in the External Drive (I have this set as the default in case the gadget breaks) go to the "GARMIN" folder, then the "GPX" folder. The files should be there.
Hope all this B******s is helpful. If not PM me as it's easier to talk through, or maybe talk through over a beer on Thursday with your oppo. I am abstaining until after WCW this weekend then it's back on that PBP website hopefully.
Dave (Smeth)urst. How lacking in imagination!