My members can not register new accounts, on the form it has a black and white image with "Security Disabled Error" in text (or words like that)

I am using the free download of v7 with the free licence as I would like to fully test the software 'before' purchasing it, I thought I could get help from Boonex but they want a payment of $5 first before you can even type on the forum! lmao

any help please would be great. I have GD image libary installed (I think it is called)

*** FIXED ***
My host had disabled GD Library but said they had not :/

They have now turned it ON and it's working.... sorted!

While choosing a host for dolphin make sure it meets all the requirements. You can check the threads here about the hosting.