Different Result Every Time I Revalidate?

I am having a little problem,

If I click:
Validate/Calculate Weight Now

And, lets say my weight is 390.

I click it again, and it said 444, then again and I got 310.

What is going on here?

 

Now it's balanced out and is showing 389 every time.
Can someone explain what was happening? Was it still calculating?

 

I heard that Google was cleaning house today. Maybe the validator was getting inconsistent results from the Goog?

 

There is google PR going on, so maybe each time You hit validate button coop gets diferent results from google api.

 

Have you updated your adnetwork.php file yet? There was a mandatory update sent out a few days ago.

 

Yes.

And, it has finally stabilized at a much higher amount > 700... great for me

 

The answer is simply because the google API returns less stable results lately. The number of pages reported by the API are one of the determining factors of your base weight.