PR problem with dynamic pages?

problem with the PR update

[netidea]

With this new Google PR update, I've noticed in two sites I work for that it seems that there is a problem with new PR of some dynamic pages.
In my case two internal pages that pass just one variable and that produce no more then 20 pages now have PR 0.
For other internal pages with no variables and homepage there is no problem.
Any ideas?
Someone with the same problem?
News from Google?

[doc_z]

The PageRank displayed in the toolbar for dynamic pages isn't correct. It seem that the URL is truncated after the '?' for PageRank queries. Therefore, you can't get any useful information from the toolbar.

Normally, dynamic pages get PageRank in the same way as static pages. Thus there shouldn't be a problem (apart from the fact that the value in the toolbat isn't correct) as long as there are not too many variables and the page isn't indexed.