Bug in mail.app

Hi all, since a week or so I have been experiencing a bug in the Mail.app.
I will add a photo to clarify things a bit.

I would appreciate any input....

Ibanezi

I presume you mean the display corruption, is that only within the content of the e-mail or on other parts of mail.app and what about other applications?

Yes it's only when links are displayed in the email, they're the ones that seem to be the problem.
I have not yet seen any indication of other applications being affected.

Ibanezi

What version of OS X are you running and if you move the application around does the glitch change in any way?

I'm running Mountain Lion, and yes... if I move the application to another folder, the issue remains.

Ibanezi

I think the problem lies with this forum, or to be more specific, the mails it sends.

It's the only source of emails that displays this "bug".
I get tons of mails from other forums with lots of links, but the mails coming from Mac-Forums are the only ones with the distorted links shown above in the original post.

For some reason (not important) I had to reinstall ML this week, so I have a clean install, and
it's still the same.

Anyone els having the same problem?

Ibanezi