Same problem as Zyikes from about a month ago. just lost all progress. cant even figure out what triggered it for sure either. if there was maybe a why to download it for people who didn't what to play in browser? because like lotsofflag427, trying to use the SWF files isn't working for me. I'd actually be perfectly fine playing a downloaded version even it it meant deleting it and re downloading the new version at every update. just to avoid this kind of thing from happening. Admittedly this has never happened when i play over on newgrounds, but my internet security set up seems to hate that site and often blocks me out of it so i cant even reliably play this game there.
EDIT: Don't get me wrong, I really do love the game. I absolutely wouldn't go through the effort of sorting this out instead of just quitting unless I really enjoyed your work here.