Thanks, Helmut.

I banned the IP and the flood stopped. Maybe the bot used a continuing session, which was still open. Since I don't like the image-captcha at all (making it less readable, the pic will drive human users crazy ;o) ), i'll return now to mathematical captcha.

As I've seen, V2 comes up with akismet & bad behaviour - akismet is a usefull thingie I had to notice, bad behaviour is new to me. We'll see.

Thanks once again for your feedback.

Freddy