I have been using a fairly standard imagemap inside a table cell (though I noticed this effect is apparent outside a table) of the form
<img src='' border=0 usemap='#a'>
The map works fine with links etc but there is a white space horisontal line under the map (a few pixels wide) so that I cannot place my image map diectly above another image without a space. I have tried varying the border=0 position in the tag. any ideas?