Earlier, when I closed my Firefox with multiple active tabs, and then restarted Firefox, even in the absence of Internet connection, the pages would load, perhaps from cache. But now the pages don't automatically load from cache and I get the message Problem loading page, asking me to uncheck the "Work Offline" menu. == This happened == Every time Firefox opened == When I updated from Firefox 3.5 to 3.6, and came back because the later version did not load from cache. But after reverting, even version 3.5 does not load from cache