I don't get on face book but a month or so back I had issues logging onto anything at all. And virtually couldn't for about 4 weeks. It turned out to be a new auto/update Microsoft download that had downloaded on my computer that was causing all sorts of problems. It was a new Microsoft toolbar and when I erased it my problems were solved. When I checked out the downloads and looked at this one it said with a questionnaire "are you experiencing any problems logging in or is you computer running slower than usual?" etc... So when I saw that and thought, "yeah I am" I erased it or deleted that new program/download and all's good. Don't know that that is your problem though but maybe check out any auto updates that might be causing it like it did with mine.