[AccessD] WithEvents - Why doesn't my Access like it?

Hello all you gurus -
Is WithEvents not an acceptable keyword in AccessXP (file format Access 
2000)?  I am playing with code from John Colby's demos, and in my 
module, which is a straight copy of his, the line
"Private WithEvents mtxt As TextBox" is red, which usually means Visual 
Basic doesn't recognize the keywords I've used.  Is there a version 
problem possibly?  My VBA says it is 6.3.8863.  Any clues here would be 
very much appreciated.  It's especially confusing to me, since in John's 
code the keywords remain a nice blue.  What am I missing?
Tina