Well, I don't exactly mean hidden but rather just hard to find. Of course, in your case, it is very clear cut. In my case, you have to read the whole bunch of stuff and click on the continue link. I am from Singapore.
digi1 has asked why we attach paypal separately since 2CO offer paypal. Some customers don't like to navigate to their paypal via 2CO. I've received complaints from customers that they don't like to go through this 2checkout, but I'm not sure whether 2Checkout allow us to use both in one web site because they review our web sites before enable the sales. I think if we have a paypal business account its' enough. We can depend on it.
it's about IP issue may be Paypal think your IP is dirty (relate to fraud, abuse) they dont allow you to "continue without logging" Try changing your IP to new one, clear cookie etc...