Weird black line in forum

This is not a big deal in any way but thinking it may be evidence of something else so figured I would post about it.

Any time I am looking at a category in the forums I see a small black line to the right of the thread titles. Always in the same position and shows up in every category.

Here is a screen shot of it to show what I see:
https://picasaweb.google.com/102838871226031159253/December202011#5...8302868402

I am running Windows 7 64 bit with Google Chrome 16.0.912.63

If you're blocking the ads, I really don't care to help you.