Multiple Text Boxes on Powerpoint Masters (2008)

I'm using powerpoint 2008 on my Mac creating some master slides for a client.
The master slides contain a Title, Bullet Points, Sub-Caption, Page # and Footer.

When using the masters, I enter text into the bulletpoint text box and all the formatting is correct. However, if I then change the layout to another of my slides the bullet points move to the sub-caption textbox and change format.
Can anyone help??

NOTE: Moved to more appropriate forum.

Doesn't seem to be related to 'Community Suggestions and Feedback'