Image Interval 'jumps' back to 5 sec

I saw this too. The bug is in cck_slideshow_get_settings. The code was not correctly evaluating the auto_play setting when set to 0 (Disable automatic rotation).

I changed the line from
$settings['auto_play'] = empty($settings['auto_play']) ? 5 : $settings['auto_play'];
to
$settings['auto_play'] = isset($settings['auto_play']) ? $settings['auto_play'] : 5;

This worked for me.

Thanks fiishi! Committed.