We have fixed the reported bug related IE history and released it as version 5.1.4.5.
Specific problem was that when you delete folders (by date) in IE history while having changed current folder for some reason, the content of the current folder may accidentally be deleted.
While it is not a common problem among users, we'd ask everyone to update to 5.1.4.5. You can check your current version at tool bar help -> about Lunascape.
You should receive version update notice in a few days, but if not, please update via toolbar Help -> check for updates or visiting download page on our website at
http://www.lunascape.tv/Download/tabid/59/Default.aspx.
We are truly sorry for the trouble and inconvenience this has caused.
Lunascape Team