I'm using Version 8.2.4, build 123. Sorry, definitely should have included that info. Seems to happen more frequently now (in version 8) than when I was using version 7.
Even without the spell check, in the Plan section I used to get typed text suddenly moving to the end of the section, now it seems to be happening in other boxes as well but not so frequently as in Plan. It's so hit-or-miss that sometimes I'm tempted to think that I somehow did it, except that it never happens to me in any other program. Seems more often to happen after the first letter, then the rest of the word appears at the end of the section.
I use spell check a lot, my typing accuracy in the exam room is pretty bad.
Will bug report the moving text in the spell check, and separately the typed text issue, though suspect they are somehow related.
