When Word autocorrect or autotype changes what you type to something it imagines is prettier, Ctl-Z "escapes" back one step, just like "edit-undo" and "erases" only the change if you do it before typing on, leaving what you typed in the original typed form.

The broken chars may be tied into an autocorrect/autoreplace function that's working in a browser, in which case there's probably a "backup" quick-key that may work - - maybe even Ctl-Z since it's a fairly universal "undo." Or you may need to change settings. Since others don't appear to see what you do, it's unlikely you're actually getting "wrong chars." You could check that by copying the char pairs you're seeing wrong and pasting them into Word or Notepad. If they show two separate chars there then they haven't been converted to a "combination glyph."

IE, and probably other browsers, do sometimes have a difficulty with "rendering" some fonts at small point sizes. This is due to there just not being enough pixels to draw the chars correctly with the screen resolution (75 or 96 dpi?) being too low for the character size. Officially the reported "break point" for this error is at about 6 pt type size at 96 dpi, which is pretty small (about .08 inch tall?); but it may vary with fonts and with monitors. You could try changing the scale at which you view the web page to see if that might be the cause, and/or change the text display size (small to larger?) in the browser.

If it's a screen resolution difficulty, a different font might help, since some forms are less "pixel loaded" than others.

John