A corrupt installation of Word could explain both problems. But before reinstalling, some other alternatives should be considered.

With respect to disabling AutoComplete, your action was correct and should have worked ? provided you clicked OK after unchecking the box.

The grayed-out Spell Check can indicate a missing or corrupt dictionary file. It will be missing if you didn?t specify Spell Checking when reinstalling Office ? it is not installed automatically.

To install the spell checker, insert the Office disk; if it does not start automatically, run its setup.exe file and choose Add or Remove Features. Expand Office Tools and then Proofing Tools. Select Spelling Checker, then Run from My Computer, and click on Update Now. Spell check should now be installed.

If you still have problems, try Repair Office before doing a complete reinstall.

Hope this helps, and please let us know the outcome.