One of my friends just chatted me online - the "Shift-S" keyboard sequence wasn't working.
The "s" key works normally, it works with "Caps Lock, s", but just not with either of the Shift keys.
I suggested that she unplug and replug the keyboard, and eventually I resigned to even rebooting the Mac.
Turns out that the issue is "Text to Speech" in the Speech System Preference:
This frustrated me also. I could not use the shift s key to get a capital s. Here is how I resolved the i...