Fatal application error. Navman S70

[Roo]

Right, going on holiday Thursday morning so got the satnav out when I got home to charge it up and it came up with the following warning.

Application gwes.exe has performed an illegal operation and will shut down. If the problem persits etc.etc.etc.

I've emailed navman but want to know if any of you lot can help out.

I'll put this on computers, gadgets nd stuff as well to get better coverage if the mods don't mind.