Combining presentations with multiple masters

[micah]

I have several .pot templates, each with multiple masters.

When I combine presentations made from these templates, the formatting is
lost or changed on some of the text boxes, even though i have use "keep
source formatting" when inserting slides, keep design layout...(mac version)
on. This is happening on versions 2003, 2004, and 2007.

The pot files i am making need to be compatible with the above versions,
cross platform, so i am saving as a 2003 template.

Any suggestions or comments to keeping the formatting or on this issue?

Greatly appreciated.

Thank you.