Hi,
Apologies if this is in an innappropriate forum (couldn't see one for flash memory cards).

I've just purchased a 1GB MicroSD card for my 6234 (thank you V.Box), and the phone will happily create files on the card.  However, when I put the card into a reader, and try to put files on, it says 'Card is write protected'.
Obviously I've flicked the 'Lock' tab into unlocked position.

I've seen the same question asked on other sites (eg. 'Is it electronically locked?'), but yet to see any answers.
Any help appreciated.