Hey Banjotom2---Tabledit issue

Tom, as resident TablEdit pro, have you ever run into this problem:

I am using TablEdit to enter music notation for fiddle, so I have the program set for mando. I am entering a Bb major tune ('High Level Hornpipe'), and have all 24 measures set to the Bb key sig, and the 2 flats (E and B) show up as they should next to the treble clef, and when I enter a B or an E in music notation, the app is creating correct tab for those flatted notes. So, it realizes we're in Bb.

But when I highlight either a B or an E note in the notation to make it natural (up a half step) by clicking the Natural button on the Notes palette, nothing happens--no insertion of a Natural symbol. However, if I increment the fret number (+1) in the tab, the Natural symbol is inserted in the notation! This is driving me slightly nuts, because I prefer to enter notation without the tab showing. I just downloaded the latest (2011) version to replace my 2007 version and this (presumed) bug is still there. Do you know of a way around this other than forcing the change on the tablature view? Thanks.

Dave