Statistics module: "total unique" eq "total pageviews", how to fix?

[jpa]

I've installed the statistics module on one of my CMS sites. And the {Statistics} tag have been put on all templates. The problem is that the summary does not differ between unique counts and total counts.

I now installed the same version on another CMS site that I have. And here, the numbers differ, and unique counts does not increas when I reload a page.

The problem site runs CMSms 1.5 with Statistics 1.0.1.
The site with no problems runs CMSms 1.6.8 with Statistics 1.0.1

When I check the logg of the problem site, it says eg:

Tue, 07 Sep 2010 14:35:22 +0200 [***][82.xxx.xxx.xx] *** ENDING SESSION ***
Tue, 07 Sep 2010 14:35:22 +0200 [***][82.xxx.xxx.xx] Ignoring visitor because of self-referer (http://www.mysite.org/)
Tue, 07 Sep 2010 14:35:22 +0200 [***][82.xxx.xxx.xx] Inserting new visitor
Tue, 07 Sep 2010 14:35:22 +0200 [***][82.xxx.xxx.xx] User agent:Mozilla/5.0 (Windows; U; Windows NT 6.0; nb-NO; rv:1.9.1.11) Gecko/20100701 Firefox/3.5.11 ( .NET CLR 3.5.30729)
Tue, 07 Sep 2010 14:35:22 +0200 [***][82.xxx.xxx.xx] *** STARTING SESSION ***

The "ignoring visitor because" logging, should be counted as a non-unique visitor, right? Well, the summary counts it. Since I activated the Statistics today, the total count is already 1057. But the unique count should be about 400, I think. SO it