I have upgraded to 1.38a. Now I have a Problem to send HTML - mails.
If I use the first language ENGLISH everything works fine and it shows in the Admin the welcome mails also in HTML format.
But If I change the language to GERMAN I got an error message that only shows : HEADER in the top of the admin and the welcome message will be text only. all message or newsletters are also in txt-format.
When I change back to English no problem. What happens???? How could I fix that.
Default e-mail setting are : PHP
Thanks for your help