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What do you mean? Subpages, sub-domains?
It's common for new sites (and low-PR home pages can mean that sites stay in this state for some time) to have a home page with PR and the rest of the site not to have PR in the toolbar even though the pages are in the index and apparently stable.
I put up a site just before Christmas, and no PR was visible anywhere till the recent backlink update, but the site was doing fine in the SERPS 3 days after upload.
It's also generally accepted that the toolbar's PR has become a bit of red herring, as it's frequently thought to pump out values specifically to cause coronary arrests amongst those who see it as the only important output from Google.
The SERPS are the only important output from Google, because that's what your customers are using!