Impossible to save anything

Hi,

I just installed Toucan on win7 64 bits (2.2.1)
I'm a first time user.

I set up a very simple task

(you can see a screenshot here
http://img130.imageshack.us/img130/4532/toucansave.jpg )

And I get strange error messages that you can see there

(http://img707.imageshack.us/img707/3659/toucanerrormessage.jpg)

I can't get any task to work, I get the same errors all the time.

Thanks a lot for your help