Very frustrating spell check problem

[Biederboat]

Hi! First time poster here; didn't see a noobie section but here goes: I consider myself an "above average" Office user who loves forums for the ability to get multiple eyes on a problem!



This problem is hard because it's very inconsistent. My boss's PC (Windows 7 64 bit, Office 2013) does not spell check consistently, at least on Word and Outlook. Sometimes it works fine, other times it doesn't mark any words (spelling errors or grammar). It appears (not 100% certain) to be a case of where it either works for a document or it doesn't. It can be a case of where it's working on one document that's open and not working on another that's open at the same time.

We've fairly thoroughly checked all his settings against mine and they appear to be all the same. His PC is fairly new (about 3-4 months).

Help please!

Thanks so much,
BB