google tool bar rank

trying to figure out the reason for a drop in page rank

[shakaal]

Hello
I would appreciate if someone could answer this for me. I had a pagerank of 5 and now my site has dropped to a page rank of 4 for no apparent reason. I have been following all the rules and made my website according to that. Could anyone please tell me what is going on.
thank you

[xcandyman]

Forget about the pagerank for now as the toolbar is playing up even google.co.uk is displaying a PR0.

[doc_z]

I wouldn't worry about PR if the ranking didn't change.

However, to answer your question: a drop in ToolbarPR can be caused by several effects:
- a change of PR for pages linking to your page
- a change of transferred PR through a change of the number of links on those pages
- a change in the PR algorithm (e.g. the damping factor)
- a change of the links which are considered for PR calculation (e.g. guestbook links are removed)
- a change in the Toolbar scale (i.e. the relation between real PR and ToolbarPR)
- a change of the link structure of your site