What do you think is the cause of this?

I have an internal page of PR5. I link my internal page to main page.

However, my main page dropped from PR3 to PR2.

Funny right?

 

lol you bet its funny.
wait until the next update.

 

are you trying to say this shouldn't happen? So i should wait until next update and I should be able to see a PR5 for my main page right?

 

You must have happened to got some good links to that internal page. There's not much you can do about it other than get more links to your homepage. It could be a good thing though if that page targets a good keyword.

 

yes get more links to your homepage and wait for the next updates

 

just get quality back links

 

If you created a nice content and lots of sites linked to it that very normal. Try to find where did you get that backlinks from. They have great value

 

Actually you inner page have more better pr may be that page is more suitable for URL and home page is not enough. And don't worry your home page will get good pr soon keep searching links for home page .
I hope you will get good pr in next update

 

there are two things to consider.
1- wait till the next update take place and the PR will drop.
2- Your PR 5 internal page might have some good links pointing to it.

Thanks,
Googol Rider

 

The only rational explanation for this is that your inner page has some
high quality backlinks pointing to it, your pr may or may not drop at
the next pr update.