Activating Paypal Standard addon adds two blank lines to PHP Output of page

Hi,

I'm using a highly customized version of the Arras theme (http://www.arrastheme.com/) - here is my beta site -

http://beta.napequity.org

The problem is that when I activate Gravity forms + the Paypal addon, I get two blank lines in my HTML Sourcecode (the PHP Output):

Without Paypal Addon (Gravity forms + User registration): http://pastebin.com/7fgwDN8E
With Paypal Addon (Gravity forms, Paypal, User Registration): http://pastebin.com/BAFK4BfP

With no addons other than Gravity Forms, Paypal Addon, and User Registration Addon):

http://pastebin.com/5LhUmBuP

The reason I'm posting this is because it causes my RSS feed to be invalid, since the first two characters in the XML are not brackets.

Same issue with just the Twentyeleven theme, Gravity Forms, Paypal Standard, User Registration:

http://pastebin.com/JMJ42ngZ

Only have Gravity Forms running, plus the two addons (Paypal Standard 1.4 , User Registration 1.4), updated about ten minutes before I posted this thread.

This happens both on my local WAMP install and on a live development site as well (the beta.napequity.org site)

That fixed it. Thanks both of you for your help on this. Great support and customer service.