The Google TB PR Greybar issue, anyone figured it out?

I have pages, of different types on old existing sites that have gone grey on the G Toolbar. They have been this way, and were not changed in the last TBPR update.

I know G updates the TBPR when it finds a new page, and it goes from grey, to white, with no PR showing, these pages had PR showing, but now for quite some time, they are just grey.

Anybody got any idea Why?

BWC

 

Have no idea.
Maybe google is changing something

 

In some cases these pages may still have their old PR, but Google is graying out the bar in order to hide the real value from the public. They could be doing this as part of their effort to prevent people from selling links.

 

There is a possibility that google may have punished you for doing something wrong.

 

I actually don't understand our question, have you lost PR?

 

Angilina, the google toolbar pagerank display shows grey for pages that it used to show some green pixels.

I have not lost any SERP placements to speak of for these pages, and traffic has not changed that I can see, just the greyed out PR graph. A few of these pages were link pages, but most are product pages.

Another Google hickup perhaps. I do not know

BWC

 

Exactly right, may be wrong with the content, or using any black hat tactics for the website

 

No black hat here, and besides that, the pages still perform in the serps, no real change in traffic, so they are not penalized as far as I can tell. I am not worried about them, just curious as to why they greyed out.