That is why I asked if you had flushed your web cache. CNTRL F5. I find that my web cache at work will sometimes give strange results on web pages I have visited that have changed since.
Just set your browser options to empty the cache every time you shut it down. In these days of broadband, keeping webpages in a cache for days is unnecessary :-)
Everyone accessing the web from work (tut tut) please ignore Peters advice. He has not come across the phenomenon of the corporate web cache that so many of us are behind for "our protection".