>I have a form with a variety of text and combo boxes. Periodically as the User is tabbing or clicking from one box to the next, the mouse cursor will disappear. There does not seem to be any consistent pattern for when it will suddenly disappear. Has anyone else had this problem?

For what it's worth, i've had this problem as well and I found out that when a COLOR statement is used in a DEFINE WINDOW statment to alter the background color and not set back to what it was prior, it will seem like the curosr disappears when it really hasn't. It simply blends in with the backcolor of the field.