InsideTech

That little triangle is normally there for some form of javascript error.  Without being able to see your settings, or know why you can't change browsers to something a little less archaic, all I can guess is:

Some script is trying to run that IE6 simply can not support, and the webmaster didn't bother checking to ensure that it would run on IE6.

If you can't upgrade to IE7 or IE8, then you might consider Firefox 3.5 or Opera, or the new google browser.  The odds are, having a newer browser that will support the latest web development techniques, you will see that less often.

I did a little googling for you this morning, and the best I can find is as much as I had figured.  It seems to be most probably some script that IE6 is having issues with. 

As an aside, the reason I keep saying "IE6 has a problem with" instead of just saying the site has bugs is that the webmaster may not have coded the site to be compliant with such an old browser.  Personally, I do not take compatibility for browsers that old into consideration when I make most of my sites.

A result from my googling provided this.  It will detail some steps that may help you with seeing the triangle.

Another possibility is that whatever link you are clicking is a popup, and you have some form of popup blocker running which does not allow you to see the new window.  Try right clicking the link and chosing "Open in a new window".

Another way to try and resolve the problem is to try a new browser, like I suggested before.  Personally, I use firefox 3.5, which you can get here.

If you are still seeing the same problems on a new browser, and disabling debugging for scripts in IE6 doesn't work, then we know to look elsewhere (possibly the site you are trying to view is broken). 

Hope this helps.