2 questions, really re: IE 5.5

1) I've set up a synchronisation schedule for daily news etc., but find the saved pages become unavailable from the cachhe if I forget & leave IE 'online' before selecting the synchronised news site for viewing, from my Favourites list. I don't understand why, on cancelling the online refresh of the particular page it doesn't show the offline, synchronised, page?

2) Again, re offline pages - pages that are saved as favourites for offline viewing seem to 'expire' rapidly on my system. I've ensured there's no storage limit (I have 6Gb spare on the destination drive) for stored pages, and my History is set to save content for 60 days, a figure which is never reached by any of my content.

Any help in understanding the above would be much appreciated - KB and Help are distinctly rudimentary.