Hi

I've just installed my zen cart store a recently and have been configuring it, but today I tested creating a new account, when I submit, it doesn't take me to the create_account_success page, instead it gives me a blank page and the URL is still at the create_account page, although I can enter the create_account_success page manually in the address bar, and the account was shown as created and I could log in.
I have also just installed a test store from scratch and its create account pages works without problem, so I know it's not my host.
I havn't made any changes to the pages, apart from the down for maintainence page and added a few products and enabled paypal modules.

Can someone shed some light for me on this?

Thanks