Hi - I'm using Access 2003.

I have an input form that I'm trying to link to multiple tables. I have a command button that updates all the tables with the ~40 textboxes which the user inputs the values.

I'm wondering if there's a way I can make the command button disabled until the value of the text box differs from that of the input tables. The only way I can think is to have a subroutine for every text box "after...