super captcha Getting errors

Running WP 3 rc3 in Multi Site mode
installed super captcha on the top got this message
The plugin generated 47 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.
Enabled plugin checked some settings all looks good.
A day or two later I started checking out my add on Site and on the addon site enabled plug in got this message on top.
Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /home/XXXXXXX/public_html/wp-content/plugins/super-capcha/super-captcha.php on line 197
this error repeats 17 times same message.

I uninstalled plugin and reinstalled got same eror.
I uninstalled checked the database saw wp_scaptcha and wp_scaptcha_logs tables were stil there. deleted tables and reinstalled plugin now I have no defaults for options.
clicked on restore defaults noting happened check database tables no there restored tables from a back up back to square one network enabled plug in and on add on site get message all the time.
please help.