When tabbing in form, cursor disappears at times due to tab stops set to Yes.
Cause:
Various controls default to tab stops when no data is entered in the control.
Solution:
In the Forms Design view, use the 'Tab Stop' box in the property sheet to disable the cursor from moving there.
1) If the Database window is not activated, activate the Database window.
2) Click the 'Forms' tab in the Database window.
Forms tab
3) Select the desired form from the list. (The selected form is highlighted.)
4) Click 'Design'. (The selected form appears in Design view, and the floating Toolbox appears.)
5) Select the 'View' menu and select 'Properties'. (The property sheet appears.)
6) Click on the desired control to turn off the tab stop.
NOTE: A command button is the most typical control.
7) Click the 'Other' tab in the property sheet.
8) Click on the 'Tab Stop' box. (A down arrow appears.)
9) Click down arrow. (A drop-down arrow appears.)
10) Select 'No' from the 'Tab Stop' drop-down list.
11) Repeat steps 6) through 10) for each desired control.
12) (Optional) To change the current tab order, do the following:
a) Select the 'View' menu and select 'Tab Order...'. (The Tab Order dialog box appears.)
b) Select the radio button for the section for which to change the tab order, in the 'Section' group.
EXAMPLE: The possible sections in a form could be 'Form Header', 'Detail', and 'Form Footer'.
Tab Order
c) Move the fields to the desired order in the 'Custom Order' list box.
NOTE 1: To move a field, select it and drag it to the desired location in the list (i.e., on top of the field which it is to be above).
NOTE 2: Click 'Auto Order' to have Access automatically order the tabs.
d) Click 'OK'. (The Tab Order dialog box closes.)
13) Select the 'File' menu and select 'Save' to save changes to the form.