I can't get 'Field Calculator' to work in any of my tables since going to Arc10. This applies to shapefiles, personal gdbs and file gdbs, in edit sessions and outside edit sessions. I need this function constantly in my work, and filling in records one by one doesn't work for 50,000 records. I've got Service Pack 3 loaded and an ArcInfo license. I know my syntax is correct, I've been using this function for many years. Did something change that I'm missing, or do I need to try to re-load Arc10 completely?