Multiple sign up strings on checkout page

Hi,

I have enabled users to register multiple blogs on my site, and thats working fine, the problem is when they are logging in, and visiting the checkout page, the message get display twice, with different strings... See screenshot.

So my settings are, in the network settings, i have enabled both user accounts and sites can be registered, and on the pro sites settings i have enabled allow user to register multiple blogs setting.

So its only it dont need to be displayed twice, so how can i remove one of them, with out loosing the function?