Yes you're logged, BUT your API doesn't have a permission to call some API, and without these permession C.A.t. won't work.
This is the reason why i ALWAYS write an "How To Activate"
sry, i activatet the api Long time ago for use with other Trader, dosent remember and attent what Settings there was.
it was working with old Trader.
![Huh](https://bitcointalk.org/Smileys/default/huh.gif)
what to do now?
Sorry but rules are equals to all customers. You must buy a new API Key for Bitstamp
![Undecided](https://bitcointalk.org/Smileys/default/undecided.gif)