Automatically select a cell when tabbed to
 

This has to be simple. When I tab through a "form" created in a worksheet, I
want the tab to also select the cell - not just move to it. Bottom line is
that I want to use validation to prohibit blank cells. It works but only if
the cell is selected. Otherwise you can tab or enter thru w/ no error
(unless you click in the cell before next tab. Make sense?