Mail always comes up when i try to open a link.

I'm not too good at this, so lets see if I can tell you my problem. Every time I try to open a link, MAIL always comes up. Does anyone has an idea how to fix this?
Thanks:::

For troubleshooting, try using Firefox. Firefox has a small window in the lower left corner that shows you what the link address is - before you even click on it.
I'm asking you to try this to confirm whether the links you are talking about are "mailto" links - which would start up Mail if that's what you have set as system default email program.