Make sure that the GPS device is running, connected and the interface is correctly set after installation (in loxtrax "Settings" ⇒ "Interface")
If you want to try out loxtrax without having a GPS device handy, just download the example data package. It contains a NMEA file that can be used instead of a real GPS data source.
loxtrax doesn't need no .NET, dlls or other runtime libaries ("frameworks") installed.
loxtrax uses only GPGGA and GPRMC NMEA "sentences", both must be sent by the GPS. All other records are ignored. Make sure the GPS is sending NMEA, not SIRF or other data.
The amount of memory required when running is mainly determined by the size of the background map loaded.
To unzip files on a PocketPC you will need a utility. If you don't have one already installed, there are free tools available. One is Pocket RAR.
You can derive from the version number what changed: When in 1.X.Y the X changes, it means functionality was added or changed. When Y changes, bugs were fixed (what bugs?).
Please make sure your GPS device is running, sees enough satellites and is connected properly before reporting bugs. Try out different baudrates and COM ports.
De-installation:
exe version: use ActiveSyncs "Software" function
CAB version: use the PDAs "Settings" ⇒ "System" ⇒ "Remove Programs" function
De-installation doesn't remove recordings.
If in doubt with POIs or LOIs, have a look at the downloadable example files above. You can find out the dataformats loxtrax expects by examining the files supplied with a text editor.