Transaction key remains empty

[haggis]

Hi All.

I've still a clean installation. I tried to configure the authorize.net module. When it comes to enter the transaction key, it fails. No key has ever been accepted, neither did I receive an error message or other notices. Therefore I can't save the configuration.

How do I fix it? Any advice? Modules or other configuration that I've overseen?

Thanks in advance
Haggis

[PRO]

http://forum.virtuemart.net/index.php?topic=58552.0