htdig image problem

I was wondering if anyone else has or had this problem: I just setup htdig on my machine at work and for some reason htdig is looking for some of it's images in /srv/www/cgi-bin/images rather then in /srv/www/htdig/images. Now some are OK. In particular the star images that htdig uses on search hits. The ones that it's not finding are the page images that it puts at the bottom of the page, i.e. page1, page2, page3, etc. Yet all the images are located in the same directory. I know there's are variable called image_url_prefix which I tried setting to no avail. Anyone have a clue? I'm stumped mostly because it's finding some images but not others that are located in the same directory. Thanks. Larry