Paypal Pro - Confirm Order being directed to blank page

[eddiev2001]

Hi Everyone,

Im running J!1.5.7 & VM 1.1.0 and using paypal pro. Everything seems to be working in the sandbox, but when i modify the settings to LIVE, the confirm order directs me to a blank page ( index.php ). No transaction is collected by paypal, and i dont know if the cart is actually able to communicate with paypal. Im on host which doesnt require a proxy and CURL is enabled.

Any help is much apprecaited.

Thanks,