Problem with lists

Hi,

I'm using OT Appoz to design a new web page with Joomla! 2.5.

I find a problem with it, when I create a list, it appear with the bullet >; but I don't want any bullet.

Do exist any way to delete the bullets? Where must I modify the template or css?

I installed the following extensions:

- JCE
- Admiror Gallery
- DJ Image Slider
- jEvents
- PhocaMaps
- Social Presence
- System - Asynchronous Google Analytics

Thanks a lot