Cart Won't Redirect to PayPal

Hi All, I have read for half a day trying to figure out how to get the payment option to redirect to paypal. This is the only payment method that I have published and there is no shipping required. Everytime I try to confirm the order I get a white screen and nothing happens. No paypal, nothing.

Can someone help?

That sounds like a fatal error.
Turn on the debug mode and the error reporting options of the joomla configuration and try again. That should then display an error instead of the blank page which would help us understand what is going on.