I get a notice that a pop-up tried to occur when I get a private message, but I haven't noticed it other times. I use Firefox, plus I have a great extension for it called NoScript.

Oh, and a tip: Anytime you post a long URL, to keep it from stretching the post area across the browser window, don't post the link bare or simply wrapped in URL BB code. Do it like this:

<font class="small">Code:</font><hr /><pre>

Some Text

Example:

This is the link

</pre><hr />

and that example will show up like this:

This is the link