Certain buttons not working

[zenspirit]

Hi all ...
Today i downloaded and installed a new instance of SugarCRM community edition.
Version 4.5.1g (Build 1003)
After installation, first thing i tryed to do whas creating a web to lead form.
I could drag and drop fields to the 2 columns, but when clicking "next" nothing happend. reloading the page, and trying the button "add all fields" didn't work.
Trying other modules, clicking several back and next buttons, all without problems. It's just in the "Create lead form" function in the "Campaigns" module that is giving this problem.

Ok, logged in to another sugar install (Version 4.5.1e (Build 1049) where i know everything whas working fine, i know have the same problem.
Only thing that happend since the last time i used this, is that i have a brand new computer (Dell inspirion 531).
Here are my specs:

Client pc config:
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.8) Gecko/20071022 Ubuntu/7.10 (gutsy) Firefox/2.0.0.8
server OS: fedora 4
Sugar suite version: Community edition Version 4.5.1e (Build 1049) AND Version 4.5.1g (Build 1003)
Webserver: Apache 1.3.36
PHP: 4.?
MySQL 4.1.12

Personally i think it has something to do with the brwoser and Os version, but what?
and i really need to get to that lead form unique id number

thanks for any help on this!

[kuske]

You have a brand new browser ? highest security ? Java script disabled ?
Try to enable it.

[zenspirit]

Hi,
Javascript is enabled (just checked to be sure).
Other buttons are working, it just in the "create lead form" that the buttons "add all fields", "cancel" and "next" are not working.
all the rest works just fine.
any other hints? Someone?

tia,
have a great day!
Zen