tumnus, you can switch using the drop-down menu, yes, but it doesn\'t move the mail or settings. It\'s like a completely different system.
I found that when I used the cp commands above, the mail *was* copied, but there are two major problems:
-- it forgets all your filters and settings and mailboxes, so you have to recreate the mailboxes with the same names (and the mail they contain will automagically appear)
-- it forgets which mail it has \"seen\", for example I had 250 emails, moved them across, checked my mail and it downloaded all 250 again so I had 500 messages, in pairs of course. Normally it\'s smart enough to know which messages it has downloaded.
On the plus side, I didn\'t lose any email. On the minus side, it was a lot of hassle.
Thanks for the feedback,
Ian.
P.S. Thinking about it, maybe StuBear\'s suggestion is a good one - if the dtm folder contains the settings them moving it won\'t help unless I move (or link) it back after reformatting the flash. I\'ll try that next time! Thanks.