Expressions web 3.0 center align problem

[BenedictWhite]

I recently downloaded the Expressions web 3.0 trial and am currently creating a website. I have 5 interactive buttons all with different names and it used to be center aligned in the web preview. I recently added a new interactive button and now in the preview the center align no longer worked. I took off the 6th button and still had the problem. Then I got an old copy of the site and replaced the code of my newer version of the site with the code from the version that worked properly. Still didn't work.
If anyone's had any experience with this or knows how to solve this problem please reply ASAP.
Cheers in advance,
Benedict.
EDIT:
Fixed now...