Text boxes (there's no such thing as a "memo" box) don't support tab stops. You might look into using a RichText control, if you have a developer edition of Access (at least I think it's included in the developer edition).
Another thing you could do is simulate tab stops using VBA code. You'd use the text box's KeyPress event to capture the Tab keystroke. You'd need to use a monospaced font such as Courier New, so that you have a fixed number of characters per line. Then the expression TextBox.SelStart Mod (characters per line) gives you the cursor column number (zero-relative). From that you can compute the number of spaces to insert in order to position to the next tab stop.
There are complications, though. If the cursor is not at the end of the text, inserting spaces will disturb the positioning of all subsequent text. And if the user has selected text, your spaces should replace the selection rather than being inserted, which also disturbs subsequent text.
Rick Sprague
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