X,Y,zoom coorddinates in zoomer

Please give me some 'tricks' or best practices as to how to stabilize the X,Y,zoom settings.

The moment I adjust the blue box, the red changes and vice versa.
Once I got it fixed and press 'OK' it moves again and always 'outside' the picture area. It takes hours to stabilize one picture in the zoomer.... by trial and error.

please help

Use chrome browser?

Yes, i do use Chrome, Is that the problem?

Open:

modules\mod_hot_joomla_zoomer\elements\zeditor.php

line :
jQuery('#zoomerPreviewImage').parent().css({overflow:'auto'});

change to:

jQuery('#zoomerPreviewImage').parent().css({overflow:'hidden'});

also


function onSelectZoomerListRow(row){
if(row.hasClass('current')) return false;
zoomerPrevImageSkipMeasure = true;
jQuery("#zoomerEditorList .current").removeClass('current').removeClass('ui-widget-header');
row.addClass('current').addClass('ui-widget-header');

jQuery("#zoomerNoLoadMessage").css({display:'none'});
jQuery("#zoomerUserEditTable").css({display:'block'});

ShowZoomerCurrent();

return false;
}

change to:

function onSelectZoomerListRow(row){
if(row.hasClass('current')) return false;
zoomerPrevImageSkipMeasure = true;
jQuery("#zoomerEditorList .current").removeClass('current').removeClass('ui-widget-header');
row.addClass('current').addClass('ui-widget-header');

jQuery("#zoomerNoLoadMessage").css({display:'none'});
jQuery("#zoomerUserEditTable").css({display:'block'});

ShowZoomerCurrent();

setTimeout(function(){
onZoomerUserValueChange();
},800);

return false;
}