An error occurred while saving the commentJamie commented
May have been just coincedence but i think ive managed a work around. When viewing your dashboard, if you click on the tile you wish to see it will expand to a full view and not leave any white spaces around it. Whilst it is in this view, pin to live page. Go back to your dashboard, delete the original tile that was showing lots of white space and squashing your visual, then move the new visualed tile to where you want and it won't have the hideous white borders. It worked for me.