Google Keyword Tool Showing Conflicting Data

[Choice]

Google Adwords Keyword Tool is showing different data for the same keywords.

Broad Match

Local Search Volume is 2400 apiece logged in from my main account.

Local Search Volume 3600 and 1900 logged in from a different account.

Can anybody explain this?  I have screenshot of both.

[zigojacko]

It sounds obvious but in each account, are the Google localisation settings the same and the geo-targeting in the AdWords tool the same?

[intSchools]

There has been LOADS of examples of this happening before (so you are not alone) but I have yet to see a really good answer to the problem really. I'd love to know the answer to this too!

[Choice]

Yes. I've used this tool thousands of times over the past few years and have made sure all settings are similar across the board.

[Choice]

I wonder if it has anything to do with semantics?

Main account:

Broad Match, Local Volume

shape magnets - 2400

shaped magnets - 2400

Other account:

Broad Match, Local Volume

shape magnets - 3600

shaped magnets - 1900