heyai wrote: Do you have any SEF component installed or are you using Joomla SEF?
Do you get any error when turning on Joomla's error reporting / debug routine?
Just wanted to insert my 2cents - having the same issue - when Joomla SEF is enabled, I get 500 errors too. happens on any CB component page (login, list, profile)
SEO settings all off - works ok
/index.php?option=com_comprofiler&task=login&Itemid=113
SEF URL's on - everything else off - "No input file specified" error - page stops - no debug output
/index.php/login
Use Apache mod_rewrite on, SEF URL's on, everything else off - 500 internal server error
/login
I didn't bother going any further.
This is a clean 1.6.1 install on PHP 5.2.17
update - a short while later:
Attempting to get some sort of useful error message, I enabled maximum error reporting in joomla global config and the problem went away! I then disabled maximum error reporting and it still works.
Some freaky stuff there, but that's what did it.