Membership module and join form problems

I just installed and reinstalled the membership module. Recompiled the language. Cleared cache.

Looked in the tables and queries were executed correctly as far I can see.

When I go to the Membership levels settings I have problems. Are they related to the membership module or the core dolphin membership funcionality? I'm confused...

Here's what happens.

Can change settings at top of Manage Membership Levels form ok.

But

Cannot add or modify memberships. Results are not saved to database, I checked.

Can't enable or select existing memberships.

And

Login form does not work. When properly filled in with captcha - browser status says "waiting" but form does not go to the next screen

By "login form" I think you meant "join form" since you referred to a captcha.  If you have the profiler mod uninstall it as see if the problems go away.  It has caused problems similar to this.

UPDATE:  I see you were the same person who posted this earlier and I already recommended you try removing the profiler mod, which I assume you did, so just disregard.  I can't think of what else it could be - you have added membership levels right?  That wouldn't account for your join form problems though.