maybe i'm wrong
but it seems that opera7.10's cache checker behavior similar as IE it's like IE->tools->options->general->**temp**->set**->auto**
in old version of opera: back/foward/navigate will not check img/scripts, only document
even you press F5,ctrl+f5
if HTTP header tells opera it's cachable, it don't even reload document
it's bad for dyn-pages for BACK/FORWARD, cos dyn-pages have to tell opera not to cache, and still not able to reload-script when refresh, this is evil for webdevelopers
in ie, back/foward/navigate is same as old opera
but a refresh will cause checking scripts/document
an ctrl+f5 will check everything with "no-cache"
it's nice for dyn-pages, that allow caching and sill dyn
i thought the way IE does is the best for both static-page and dyn-page
ie7.10 changed it's old behavior, getting close to IE
but not exactly the same as ie
