TOPIC: Problem on new server

Hi there,

after moving to a new server there is a problem when I try to register to an event.
Everything is fine but if I try to complete registering no message appears and no Mail is sent...!? It just skips to the complete list of events (which should never be shown).
The domain is http://www.drachenfliegen.net .
It´s a co-domain where I can test until everything is fine.
The old domain - which will be redirected to the one above if everything is ok (without "bayfsjoomla") - is http://www.bay-flugschule.de/bayfsjoomla . On this site everything still works properly.
On the new domain you could check by clicking on "Anmeldung".
Does dtregister use some of the global folder-settings?

Another edit: if I turn on system-debugging the message appears correctly and the mails were sent!?!?!? But this can´t be the solution, cause the site looks extremly ugly in this mode

Next edit: even in debug mode it just works for the events called "Grundkurs" not for the other ones.... maybe because for "Grundkurs" there is no payment-option for the other ones there are two payment options....

Final edit (I hope so): by moving to the new server I enabald the Joomla-SEO-option. If I disable it again everything works fine. I also want to install the sh404sef-component. As far as I know there is an option to exclude special components from URL-rewriting (or how is it called?). I will do so and hope everything will be fine. If so I will post this as solved.

In the meantime I would appreciate any reply if there is a issue around that.

Please help me out!!!!!!!!!!!!!!!!!

OK, last post for this: I solved this problem for me:
Joomla SEO is off.
mod_rewrite is on.
URL-Extensions are off.
And I skipped dtregister in my SEF-Component (sh404sef).
Not the best way, but for a meantime OK for me.

If I would know how to mark this post as "solved", I would do so.

Thanks in advance, Knut