Forum Moderators: not2easy
Welcome to Webmasterworld :)
I if Understand you correctly. You have a page made up of tables set to 725 pixel width? And one background image at 864 X 586 pixels. What resolution are you viewing your page?
The image you describe would begin to repeat at high resolutions and would be cropped by the browser limits on lower resolutions.
If you are trying to resize the image so it fits you may want to try CSS.
Personally I wouldn't place a large image in you background unless you can ensure it has a low file size and that you can scale and control it's 'repeat' using CSS.
You could place the image in a table and call it in the background of the cell - you can then control the width and height of the cell to correspond with it.
Good to have you on board - enjoy your stay.
Ta
Limbo