Hmm.. That's really odd that the phone won't let you test the ringtone. Glad you found how to check them. Cheers!

Thanks, Got it to work by plugging it into the computer. Nothing else worked.

Try this: choose the ringtone you want then go to the volume settings of ringtone to hear it. I remember it's like that on old Nokia phones, maybe it works there too. Let me know how it goes.