autocorrect in open office calc

I am trying to get open office calc to stop auto-correcting lower case to upper case.

I searched on line and found , supposedly, how to turn that off.  Go to Tools, Autocorrect options, [] Capitalize first letter of every sentence.  I turned that off.  But it still forces lower case i to upper case....EVERY TIME.  And it's only i.  All other letters happily remain lower case...a, b, z etc.  But every time I try to type in i as the first letter of a cell, it pops it right back to upper case.  OF COURSE I can work around that, but does anyone know why it does that?

edit Nevermind, I figured it out.