Hi guys,
Sorry about the trouble.
I am having trouble duplicating the problem you are having. I just tested it on my iPad and it worked fine.
Sometimes these things can be local to a particular geography (like a router down near where you live). Will you please use the contact form to email support, and tell them where you live, and that you have this problem? The support form collects data about your account that can help us fix it.
Please send a message to support here:
http://www.guitartricks.com/contact.php
Sorry again, we'll try to fix it as soon as we can.
Jon