|I get that a lot too; at times, it seems defiant on loading a new page and would rather use a cached copy instead... :||
There's probably a better solution out there, but what I've typically done is go into tools => internet options; on the general tab, click on "settings" and then click the "every visit to the page" option.
Doing that slows down the browser a lot though, so I wouldn't recommend keeping that setting if you use IE as a primary browser.
Hopefully, that will help you check your updates... I know all too well how frustrating it can be.
My work in progress. I hate JS. :P