How is this possible? Internal PR4, but homepage PR1?

i also have the problem, the home page pr2 the catalogue blog pr3

 

Lol!! I haven't heard about this before. Can you provide that link, so that i can check it out.

 

I think you have quality PR back links for inner page.

 

Well just wait for the next updation You will see good results .

 

well the best way to get them to make internal pages more popular.

 

I recently watched Matt Kutts video describing same situation where webmaster were getting mad with such scoring. He explained in video that PageRank for a certain high internal page based on how important page is. There are chances that homepage doesn't has a lot of value than an internal pages that is being viewed and getting incoming links from many websites/blogs. Nevertheless, the high PR page has its very high number of daily UV and it might having SERP for a certain keyword.