me too!
I had a similar problem when i was in the mountains, I have to use dial up. at home i use cable. at the mountains, i had connection issues ( 16kb speed ). at the end i got errors on all pages. when i got home, all the pages were having errors. I thougt my netowrk was messed up. I had to do the same thing. IE remembers what the last version of the pages downloaded were. So yes, flushing cache, flushing pages, flushing cookies makes IE reload everything. Glad it worked.
tedbiv