I install and everything installed OK and I was getting ready to read through the manual and start setting it up.
When I goto the Payments Center\Settings, make a change and click "save" or "apply", I get this error....
412 Error
Your request got filtered out due to possible security issues.
One or more things in your request were suspicious (defective request header, invalid cookies, bad parameters)
If you think you did nothing wrong:
try again with a different browser
avoid any evil characters inside the request url
If you are the owner of the website, you can consider revising the rules of the mod_security module or turning it off from your Web Hosting Control Panel.
Any Ideas why???