I am having a mental block. I need to use the results in a form field to change the value in another field on the same form when a certain value is set for the first field. Example: in a filed labeled "For Billing" (combo box), if "No" is selected I need the value in the "Rate" field to automatically reset to a currency number "$0.00". If the "For Billing" is set to "Yes" then the "Rate" field should reflect the default value again or have the option of inputting a different value. Rate is automatically filled from value on another form (as a default value only).
Thanks for the help.