Sorry to hear about your bad experience.

...and the keyboard is the worst example of a Duo I've ever used. It's never a good thing when one must pound or continually press the hell out of a key to get a response from it.

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In recently getting all my Duos out for testing, I found that most of them (in fact all except the 2300c) had this problem. I'm guessing that the contacts oxidize more easily on these models.

In my case, with a little persistence I managed to get all the keyboards working properly again.

Regards,

Macdownunder.