no more javaScript?! XP_SP_2

hello all,
i just am switching back to Xp (service pack 2). in trying to disable the pop-up blocker and fiddling with the settings now has me able to run javascript from the web,..BUT if i run the same html document from a folder from C:\\drive (eg. my documents) the browser won't recognize the javascript?! HELP!! i was tinkering with local internet settings and active-X controls..restore to default has done no good, by the way the pop-up blocker never did turn off. i just put XP on this PC and believe inhave all the correct updates (express) and service pack 2