Use this URL to reset the Editor to your settings:

http://highslide.com/editor/?config=%7B%22thumbnailExplanation%22%3A+%22text-below%22,+%22pageStyles%22%3A+%22%2F*%5Cn%5CtAdd+styles+here+for+a+better+view+of+how+your%5Cn%5Ctsetup+will+look+in+your+actual+page%5Cn*%2F%5Cnbody+%7B%5Cn%5Ctbackground%3A+%23ddd;%5Cn%7D%22%7D