Menu problems.

I am the only user so far, I haven't opened the sight for registration.

Go you joomla global configuration and make sure all text filters in "Text Filtering" tab are set to no-filtering. Also try to remove every trace of email you see on page form that page content (set temporaly contact in details other email)

Thanks again for staying with this,

I have reset all of the Text filters to No-Filtering, and removed the email from the email form for the site.

I checked the site but still get the error.

again i only get it using Firefox and the error is intermittent.

recreate menu item and contact

Ok, I did what you suggested and it did not help.

I tried a different tact, I started archiving one page at a time until i found the page causing it. It has something to do with a Mailto command that is confusing FireFox.

I know what is causing it but not why.

Thanks for your help Ivan.

Thought I had it fixed now I am getting "_:default" on all my articles. Any suggestions?

I have just noticed that is only happens on the Feature articles.