Cell spacing

[tmallsup]

On a report we are displaying a list.  In the list we have defined the cell spacing for each column.  But when the user views the report, the cell spacing is not used until the browser is enlarged. 

Once the browser is enlarged, then the cell spacing is used.  Is there a way to force the browser to a certain size?  This would then present the report in a better format for the users.

The list is displaying 13 columns.  Seems like the default window that opens for the reports is displaying 400 x 320 and we would like to change it to 800 x 600 or 1024 x 768.