[AccessD] Link To Code Gets Deleted

Dear List:
 
I have event procedures in places like Click or After Update and from time
to time a user reports that a function has stopped working.  When I look at
the property sheet for the control in question, I find that the [Event
Procedure] in the event is missing.  If I replace it, and click the builder
button, the code page opens up and there it is all fine and everything works
again.
 
Is anyone else having this problem or experienced it?  


 	
	
MTIA,
 
Rocky