I was doing some searching on AltaVista (snickers to /dev/null/ please) and I tried to use the case-sensitive feature of its search. It failed. I did a bit more noodling and couldn't get it to work.

After some experimenting I noticed that phrases were case-sensitive, but individual words were not. So for example if I did a search for PETS, I got almost five million results. But if I did a search for "PETS", I got 162,000.

Is this new? Did I miss it? Has anyone else experimented with this? Tnx.