Thanks Bernard, but the only entry I can find is for acn (lower case), and I
don't want it to delete that. I just want it to ignore UPPERCASE. Anyway,
I've removed the check mark next to "Replace text as you type" and that seems
to have turned it off.

"Bernard Liengme" wrote:

The is an AutoCorrect feature
Use Tools | Autocorrect , locate the entry and delete it
best wishes
--
Bernard V Liengme
Microsoft Excel MVP
www.stfx.ca/people/bliengme
remove caps from email

"Kingstonsean" wrote in message
...
I have set Spelling Checker to ignore UPPERCASE, but it continuously
changes
ACN to CAN. I don't want to permamnently add ACN (or acn) to the
dictionary.
Is it possible that my spelling checker has been corrupted?

The problem is on two different machines, both running Office Pro 2003 SP
under Windows XP Pro SP2.