I'm having a problem with the shortcut keys in Excel. If I press CTRL
+S to save, instead of saving, the cursor jumps down and highlights a
bunch of cells. It does it in every workbook. The only way to get rid
of it is to restart my computer, but it will invariably come back.

Pressing CTRL +O and CTRL +P does the same thing as well, but it will
jump to a different set of cells with each one.