why can't i see my swf's when page has been uploaded?

aaah, help, please! this is something i've done a hundred times, and now it just won't work! what happened? am i just being stupid?

i have small swf's embedded in html pages. whenever i test in my computer everything is ok. but when i upload the pages into a server, i can't see the swf's at all. nada.

yes, the paths are correct. yes, i did try the full path http://www.mysite.com/myswf.swf. yes, my flash player is up to date. i'm using flash 8 and the same problem exists both in mozilla and ie.

what am i doing wrong? in my earlier sites i haven't encountered this problem. i've tried searching threads, so far i haven't found an answer.

heeeeelp!

ok, i solved it myself, after a few hours of frantic thinking. i'll post the answer here in case there's someone there as dumb as me *sigh* although that's hardly possible... i forgot to upload the js script file... *a looong sigh*