You need at least Internet Explorer 10, or you may want to give Firefox or Chrome a try.
maybe you saved while some layers were hidden?
to continue the pic click on "edit" on the right top tab
I don;t understand this site yet, Ii lost half of the drawing...????but now when I played it , it is back, will it be there now? too confused. Now can I still work on it, or is it done for good.
Smile and Stay Positive