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Can I get the spellchecker in MS Word to remember my grammar decisions
I have a word document which frequently refers to a computer system called "I/90". When I run a grammar check it often wants to change this to "me/90" :-). It also wants to treat "I/90" as a plural because it thinks there are ninety of them. I've tried adding I/90 to the Custom dictionary to no avail. Is there anything else I can do?
I'm using Word 2003.
Here's an example:

