I have no idea what happened or what I pushed, but I now have a label that appears in the top-center of my Minecraft client which labels whatever block my cursor is over, and I cannot disable the thing.
I am losing my mind over this, and it is far too early in the day for any sort of critical thinking on my part ... My google-fu has failed me, and I hope someone out there can tell me how to correct myself...
EDIT: After a short break and some caffeine, it has been resolved. Somehow I had enabled 'tooltips', a word which never occurred to me to search for. Crisis averted.
I am losing my mind over this, and it is far too early in the day for any sort of critical thinking on my part ... My google-fu has failed me, and I hope someone out there can tell me how to correct myself...
EDIT: After a short break and some caffeine, it has been resolved. Somehow I had enabled 'tooltips', a word which never occurred to me to search for. Crisis averted.