Counter under Drupal counts x2 times

Gallery 2.0.2+
Drupal 4.6.x
Gallery.Module v.1.1 (from kiz)

I faced the very interesting problem:
whanever I click on album (and photo) under Drupal 1. counter increment +2 2. it doesn't affect session, so guest click as many times as he wants every every click it has been incresing twice.

In standalone it works fine (one +1 per click / per session (or 24h, as I reaed)
In user-mode (registered) it also works fine as above.

Please, help.

I have cookie path filled with: "/" parameter
(gallery: http://www.example.com/gallery2/, embed http://www.example.com/gallery/)

Alslo I have this extract from php-info:
session.use_cookies On On
session.use_only_cookies Off Off
session.use_trans_sid Off Off

p.s. I already asked, but ask again : how to remove GallerySID (because some search engines catch this SID into URL, however I don't see them in most cases)