Adding Widgets to Profile & Dashboard

I've recently setup a social networking website ( and everything is starting to look fairly good. Only problem I appear to be having is adding widgets to both the profile and dashboard pages. The 'Add Widgets' button is showing but is not working on either the Admin account or standard user accounts.

I have Elgg version 1.8.12 and would really like to get the site working as soon as possible.

I'd really appreciate any help, tips, pointers etc - I'm new to this so the simpler the better :)