To alter the way the grid (the border around the field contents) is used in the table, do the following:
Select the Options command from the Tools menu and go to the Grid Display page in the "Options" dialog.
In the Titles and GridLines group box most of the Grid display options are switched on by default:
3D-Buttons - the bars at the top of the columns are 3D rather than flat
Vertical Lines - sets the vertical lines for the Table Grid
Horizontal Lines - sets the horizontal lines for the Table Grid
Mark Current Row - an arrow in the left hand row bar marks the current row
Mark Current Column - the bar at the top of the column is shown as up when column is not selected, otherwise down
In the Color group box you can select a color for the Table Grid. Click on the options for which you wish to set a color (Grid Lines, Fixed Lines, Tracking Line, Dragging Line, Background) and then select a color from the palette.
In the User Properties group box set the row and cell properties for the Table Grid:
Row resize mode (Automatic resizes all rows when you resize one row; Single allows you to resize single rows independently of other rows; None does not allow any row resizing)
Row print mode
Current Cell (choose a border thickness for the current cell i.e. the selected cell, from the drop-down list)
The changes you make are shown in the Preview box. Click on OK to redraw your table with the new Grid Style settings.
Note that the new grid style is applied not only to the current table but also to any other tables you may open or create.