Update is map I already have on Unit

[Locotuss]

When I connect to TTomTom home 2.1, it says I need to update the Maps for USA and Canda 665, however, it is the same map that I have on my unit. I am Using on my 510 Version 7.1 with USA and Canada v665.1293. Why is it doing that?

Also, is there a newer version I should go to or is this the correct one....

 

[digital-flex]

That's very strange especially when the latest maps are v7.10.