E mail links not working

[#1]

Help please I seem to have upset something as when I click on an email link I get the message "application not found"

[#2]

Can you clarify.
When you say an email link is this a link on a website where they want you to send them an email and if so which browser are you using

[#3]

Its both when clicking on a link to go to another item or website it says application not found .
When clicikng on an email link on a web site it says default email client not properly installed

[#4]

Assuming you are using IE8 can you try with Firefox http://www.mozilla-europe.org/en/firefox/ as this will hopefully tell us whether it is a browser problem or something more serious.
A quick question - assuming you are using IE8 - have you been changing the security settings.

[#5]

Thanks for your  quick reply . It is IE 8. I have not knowingly changed any security settings.
Will try firefox as you suggest

[#6]

Can you give us an example of a site which has this problem? We can try it ourselves as well, then.