Search Display

I do a lot of researching on the Internet. I am presently using Chrome as my default browser and I use Google search.

I'm not sure when exactly, but know it's been very recent that I noticed something had changed in the Display of my search pages.

Normally, after I have clicked on a link and checked it out, it will changed color so that I know which links I have already clicked on. They no longer do that and I find it very frustrating.

Is there anyone else who has run across something like this, or who knows what has changed and can tell me how to fix it?

Thank you.