Medion MDPNA100 - HELP

[jontymb]

I've had my MDPNA100 for about 18 months now with no problems. A couple of days ago it did a hard reset on its own even though the battery was fully charged. This obviously wiped all of the installed software. I tried to reinstall the navigator 4 software as per the instructions (copied both cd's with the UK maps to the MMC card) but when it came to running the .cab file, it's not there & none of the files copied from the cd's seem to be executable. Does anyone have any ideas where I've gone wrong?
Since then I've tried to install TT6 which loads ok but as soon as you run the programme it freezes & doesn't recognise the built in gps. Would this have anything to do with 2.66mhz processor & 64mb RAM? - I've looked on several sites but can't seem to find out the minimum system requirements. Any help would be greatly appreciated, even to suggesting other sat nav software:(

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