if you have SEO ON and a index.html file saying e.g. "site in construction" and default serving this first, try removing it temporarly or switch SEO off.
Forms Post to index.php, which translates to homepage URL, which in turn triggers your index.html page.
Which SEO do you have ? and which Joomla/Mambo version ?
EDIT: if this solves your problem: i have good news for CB: i'm changing the URL of the forms to allow this in the stable release, but you may want to post that solution and maybe an URL to this thread on Joomla! forums so that the other components don't use sefRelToAbs("index.php") as form url, but sefRelToAbs("index.php?option=$option");
Post edited by: beat, at: 2006/03/24 01:23