My "duh" on that. I should have included my details.
I've been testing on an iMac 3.06 GHz Intel Core Duo with 4 GB RAM
running 10.5.8.
I tried it out on Firefox 3 and Safari 4.
The code was the same, I just nested it inside of another layout with
a header.
That said, after 2 days I'm actually not having the problem anymore.
I've been trying my greatest to make it happen again and it's working
perfectly.
I'm inclined to believe that it may just have been due to a lack of
system resources at the time.
Thanks for the reply; I'll chime back if it happens again, but I'm
inclined to think not. Thanks again.