Importing and listing categories from my Nuvi

OK, I think I'm getting senile ;)

On 17 Feb I imported data from my Nuvi 1490 into Basecamp. It retained all the categories I have set for my favourites, so Basecamp has a folder named Nuvi and lists within that folder that are named by category exactly like my favourites in my nuvi are organised.

Today I've tried to do exactly the same, but all I'm getting is a list that contains ALL my favourites, not broken down by category.

I've tried using Basecamp's 'Import' and 'Send to' functions working directly on the nuvi folder. I've saved current.gpx to my hard drive and tried importing that. All I get is a list.

I know it can be done, it's just I can't remember how I did it previously :confused:

If anyone can help I'd appreciate it :)