[SOLVED] Child Pages lose all theme formatting!

Hi guys!

I am creating a page in WordPress 3.2.1 and Atahualpa 3.7.1.

The problem I am having is when I make a page the child of an existing parent page.

When I do this, all of the theme formatting goes away! You can see the spacing for the header flash by and then disappear.

And the ONLY thing I have done is assign a parent page to the page.

And when I remove it from under the parent page, everything comes back!

Is this a 3.7.1 glitch? Any suggestions?

I really want to use child pages as this is a complicated site, and the use of child pages helps me group pages appropriately.

Thanks in advance for your help!

KIP