>One: What are the advantages/disadvantages to the various RowSourceTypes (Value,Alias,Field,etc.) in ComboBoxes. I'm using Fields in FreeTables for all my ComboBoxes but for no particular reason. Are there reasons for using different types for different situations?
>
Difficult to say - it is up to you. :) It depends of what rowsources you have and what do you want to use.
Usually you use Fields when you have multicolumn listbox.
You may use Value for short list of items which never change, etc.

>Two: How do I get the Incremental Search to work? This property is set to the default (True) but has no effect on my ComboBox.

Set Style property to 2 - Dropdown list.

Nick