Use this URL to reset the Editor to your settings:

http://highslide.com/editor/?config=%7B%22preset%22%3A+%22white-10px%22,+%22thumbnailExplanation%22%3A+%22text-below%22,+%22contentBorderWidth%22%3A+10,+%22outlineWidth%22%3A+0,+%22outlineCornerRadius%22%3A+0,+%22dropShadowSize%22%3A+5,+%22captionStyles%22%3A+%22%5Ctpadding%3A+0px;%5Ctpadding-right%3A+2px;%5Ctpadding-bottom%3A+10px;%5Ctpadding-left%3A+10px;%22,+%22enableGallery%22%3A+true,+%22htmlIframe%22%3A+true,+%22htmlPrevious%22%3A+true,+%22htmlNext%22%3A+true%7D