error 404 on log in using login/register module

when a user logs in using the module it takes them to a 404 page, but if you click the home link on that page or just reload the site the log in is valid and worked. i'm guessing it's a problem with the log in redirect and it keeps trying to take the user to .com/?Itemid=1 but says that component cannot be found.

any ideas on how i've broken it?

taoistwolf wrote: when a user logs in using the module it takes them to a 404 page, but if you click the home link on that page or just reload the site the log in is valid and worked. i'm guessing it's a problem with the log in redirect and it keeps trying to take the user to .com/?Itemid=1 but says that component cannot be found.

any ideas on how i've broken it?

Hello,
are you using any kind of URL Rewrite (SEF) extension or built-in?
if so, try disabling it and see if the problem is solved.

Mati

I don't think I am, unless it is a system built in function. I tried disabling the SEF system plug in and nothing happened. When I disabled the redirect system plugin i got this message:

Login successful.
Error loading component: , 1
Component not found
Error loading component: , 1

it only happens from the module, not from the built in joomla log in. also i had enabled the language filter and then disabled it...could that have affected it any?

do your internal links look something similar to: index.php?option=com_somecomp&id=4&Itemid=6