Opera browser 10.00 beta - advice needed

When I use internet Explorer, whenever I click on an e mail link, it opens an Explorer page. Then, if I click on another e mail link, the link will open in the same page.

However, in Opera, every time I click on a link, it opens it in a new page each...

time.

So, using Opera as my default browser, if I receive 12 e mail messages from FunAdvice telling me that questions I am watching have received new replies; I end up with 12 seperate Opera pages open.

There must be an option somewhere in Opera that lets you tell it to open links in the same page.

Any advice would be appreciated.

Kiasu