I have a text editor which uses a huge number of keystrokes using a combilation of Alt, shift and Ctrl in many combinations, includeing none of those in combinatin with other keys. Lately the Alt+s keystroke has quit working, yet other keystrokes work just fine. Is Windows eating the Alt+s keystroke? If so, what does it mean to Windows? I could assign that function to another keystroke, but it has been Alt+s for over 20 years, so I would like another solution if there is one.